{"title":"Filters","description":"\u003cspan data-mce-fragment=\"1\"\u003eAn \u003c\/span\u003eastronomical filter\u003cspan data-mce-fragment=\"1\"\u003e is a telescope accessory consisting of an optical filter used by amateur astronomers to simply improve details and contrast.\u003c\/span\u003e","products":[{"product_id":"chroma-lrgb-filter-set","title":"Chroma LRGB Filter Set","description":"\u003ch1\u003eChroma LRGB Filter Set\u003c\/h1\u003e\n\u003cp\u003eChroma LRGB Filter Set includes four individual filters: luminance, red, green and blue. They are available in multiple sizes.\u003c\/p\u003e\n\u003cp\u003eHighly precise and accurate, the passbands of these filters remain spectrally stable and do not drift in response to extreme temperature fluctuations or changes in humidity. All filters may be used with apertures of f\/4 or smaller. We provide custom coating services for more demanding imaging applications requiring larger apertures such as f\/3 or f\/2. We also can provide larger sizes and unique passbands upon request.\u003c\/p\u003e\n\u003cp\u003eChroma Technology is an employee-owned company. They specialize in the design and manufacture of sputtered optical filters and coatings for applications that require the greatest precision in color separation, optical quality and signal purity. Their astronomical filters are used worldwide in research and amateur applications. They are as comfortable designing and manufacturing custom filters as they are for their catalog items.\u003c\/p\u003e\n\u003cp\u003eWe manufacture the highest quality astronomy filters with durable, sputtered hard coatings using single substrates of the best glass, eliminating the need for laminations. All primary filter coatings are applied on the front surface and anti-reflection coatings on the rear surface to prevent ghosting and to maximize transmission.\u003c\/p\u003e\n\u003cp\u003eAll filters are manufactured in Vermont.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAdditional Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eExtremely durable coatings withstand humidity changes and extreme temperature fluxes and remain spectrally accurate\u003cbr\u003ein CWL and band pass adherence\u003c\/li\u003e\n\u003cli\u003eNo reflections leading to image distortions or “back reflections”\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDurable sputter coatings\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eParallelism: \u0026lt;30 arcsec\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThickness: 3.0 +\/-0.05mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eFilters designed for use with CCD and for f\/4.0 or slower\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eTransmitted wavefront better than 0.25 waves\/inch\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eIn the Box\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan\u003eLRGB filter set of the chosen size\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.chroma.com\/sites\/default\/files\/Astronomy-Brochure-2022.pdf\" target=\"_blank\"\u003eChroma Astronomy Filters \u0026amp; Sets Brochure\u003c\/a\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eLifetime Warranty for Sputtered Catalog Filters\u003c\/p\u003e","brand":"Chroma","offers":[{"title":"1.25\" round mounted","offer_id":43652186898661,"sku":"CHR-27101-1.25","price":735.0,"currency_code":"CAD","in_stock":true},{"title":"2\" round mounted","offer_id":43652186931429,"sku":"CHR-27101-2","price":2695.0,"currency_code":"CAD","in_stock":true},{"title":"31mm round unmounted","offer_id":43652186964197,"sku":"CHR-27101-31","price":735.0,"currency_code":"CAD","in_stock":true},{"title":"36mm round unmounted","offer_id":43652186996965,"sku":"CHR-27101-36","price":1155.0,"currency_code":"CAD","in_stock":true},{"title":"50mm round unmounted","offer_id":43652187029733,"sku":"CHR-27101-50","price":2415.0,"currency_code":"CAD","in_stock":true},{"title":"50mm x 50mm square unmounted","offer_id":43652187062501,"sku":"CHR-27101-50S","price":2555.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/chroma-lrgb-filter-set-astronomy-plus_587a97d7-1919-4303-b9b4-2781ded53808.png?v=1690483352"},{"product_id":"chroma-3nm-h-alpha-filter","title":"Chroma 3nm H-Alpha Filter","description":"\u003ch2\u003eChroma 3nm H-alpha Filter\u003c\/h2\u003e\n\u003cp\u003eThe Chroma 3nm H-alpha Filter is essential for imaging nebulae and other objects which are rich in ionized hydrogen. At 656.3nm, a narrowband emission filter is required to separate H-alpha from the SII doublet (671.6nm and 673.1nm). Chroma Technology is an employee-owned company. They specialize in the design and manufacture of sputtered optical filters and coatings for applications that require the greatest precision in color separation, optical quality and signal purity. Their astronomical filters are used worldwide in research and amateur applications. They are as comfortable designing and manufacturing custom filters as they are for their catalog items. Highly precise and accurate, the passbands of these filters remain spectrally stable and do not drift in response to extreme temperature fluctuations or changes in humidity. All filters may be used with apertures of f\/4 or smaller. Chroma provides custom coating services for more demanding imaging applications requiring larger apertures such as f\/3 or f\/2. They also can provide larger sizes and unique passbands upon request. Chroma manufactures the highest quality astronomy filters with durable, sputtered hard coatings using single substrates of the best glass, eliminating the need for laminations. All primary filter coatings are applied on the front surface and anti-reflection coatings on the rear surface to prevent ghosting and to maximize transmission. All filters are manufactured in Vermont.\u003c\/p\u003e\n\u003ch4\u003eAvailable Sizes\u003c\/h4\u003e\n\u003cp\u003e1.25″ round mounted (27001-1.25″) 2″ round mounted (27001-2″) 31mm round unmounted (27001-31) 36mm round unmounted (27001-36) 50mm round unmounted (27001-50) 50mm x 50mm square unmounted (27001-50S)\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDurable sputter coatings\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eParallelism: \u0026lt;30 arcsec\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThickness: 3.0 +\/-0.05mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eFilters designed for use with CCD and for f\/4.0 or slower\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eTransmitted wavefront better than 0.25 waves\/inch\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eIn the Box\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eFilter\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003eLifetime Warranty for Sputtered Catalog Filters\u003c\/p\u003e","brand":"Chroma","offers":[{"title":"1.25″ round mounted (27001-1.25″)","offer_id":43647592693989,"sku":"CHR-27001-1.25","price":805.0,"currency_code":"CAD","in_stock":true},{"title":"2″ round mounted (27001-2″)","offer_id":43647592726757,"sku":"CHR-27001-2","price":1820.0,"currency_code":"CAD","in_stock":true},{"title":"31mm round unmounted (27001-31)","offer_id":43647592759525,"sku":"CHR-27001-31","price":805.0,"currency_code":"CAD","in_stock":true},{"title":"36mm round unmounted (27001-36)","offer_id":43647592792293,"sku":"CHR-27001-36","price":1085.0,"currency_code":"CAD","in_stock":true},{"title":"50mm round unmounted (27001-50)","offer_id":43647592825061,"sku":"CHR-27001-50","price":1750.0,"currency_code":"CAD","in_stock":true},{"title":"50mm x 50mm square unmounted (27001-50S)","offer_id":43647592890597,"sku":"CHR-27001-50S","price":2170.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/chroma-3nm-h-alpha-filter-astronomy-plus-1.webp?v=1690483351"},{"product_id":"chroma-5nm-h-alpha-filter","title":"Chroma 5nm H-alpha Filter","description":"\u003ch2\u003eChroma 5nm H-alpha Filter\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eH-alpha filters are essential for imaging nebulae and other objects which are rich in ionized hydrogen. At 656.3nm, a narrow-band emission filter is required to separate H-alpha from the SII doublet (671.6nm and 673.1nm).\u003c\/li\u003e\n\u003cli\u003eExtremely durable coatings withstand humidity changes and extreme temperature fluxes and remain spectrally accurate\u003cbr\u003ein CWL and band pass adherence\u003c\/li\u003e\n\u003cli\u003eNo reflections leading to image distortions or “back reflections”\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Chroma 5nm H-alpha Filter is essential for imaging nebulae and other objects which are rich in ionized hydrogen. At 656.3nm, a narrowband emission filter is required to separate H-alpha from the SII doublet (671.6nm and 673.1nm). Chroma Technology is an employee-owned company. They specialize in the design and manufacture of sputtered optical filters and coatings for applications that require the greatest precision in color separation, optical quality and signal purity. Their astronomical filters are used worldwide in research and amateur applications. They are as comfortable designing and manufacturing custom filters as they are for their catalog items. Highly precise and accurate, the passbands of these filters remain spectrally stable and do not drift in response to extreme temperature fluctuations or changes in humidity. All filters may be used with apertures of f\/4 or smaller. Chroma provides custom coating services for more demanding imaging applications requiring larger apertures such as f\/3 or f\/2. They also can provide larger sizes and unique passbands upon request. Chroma manufactures the highest quality astronomy filters with durable, sputtered hard coatings using single substrates of the best glass, eliminating the need for laminations. All primary filter coatings are applied on the front surface and anti-reflection coatings on the rear surface to prevent ghosting and to maximize transmission. All filters are manufactured in Vermont.\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan\u003eDurable sputter coatings\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eParallelism: \u0026lt;30 arcsec\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThickness: 3.0 +\/-0.05mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eFilters designed for use with CCD and for f\/4.0 or slower\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eTransmitted wavefront better than 0.25 waves\/inch\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eIn the Box\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan\u003eChroma 5nm H-Alpha Filter of the chosen size\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003eLifetime Warranty for Sputtered Catalog Filters\u003c\/p\u003e\n\u003ch3\u003e\u003c\/h3\u003e","brand":"Chroma","offers":[{"title":"1.25″ round mounted","offer_id":43647835865317,"sku":"CHR-27002-1.25\"","price":644.0,"currency_code":"CAD","in_stock":true},{"title":"2″ round mounted","offer_id":43647835898085,"sku":"CHR-27002-2\"","price":1365.0,"currency_code":"CAD","in_stock":true},{"title":"31mm round unmounted","offer_id":43647835930853,"sku":"CHR-27002-31","price":644.0,"currency_code":"CAD","in_stock":true},{"title":"36mm round unmounted","offer_id":43647835963621,"sku":"CHR-27002-36","price":868.0,"currency_code":"CAD","in_stock":true},{"title":"50mm round unmounted","offer_id":43647835996389,"sku":"CHR-27002-50","price":1295.0,"currency_code":"CAD","in_stock":true},{"title":"50x50mm square unmounted","offer_id":43647836029157,"sku":"CHR-27002-50S","price":1932.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/chroma-5nm-h-alpha-filter-astronomy-plus-1.webp?v=1690483351"},{"product_id":"chroma-8nm-h-alpha-filter","title":"Chroma 8nm H-alpha Filter","description":"\u003ch2\u003eChroma 8nm H-alpha Filter\u003c\/h2\u003e\n\u003cp\u003eThe Chroma 8nm H-alpha Filter is essential for imaging nebulae and other objects which are rich in ionized hydrogen. At 656.3nm, a narrowband emission filter is required to separate H-alpha from the SII doublet (671.6nm and 673.1nm). Chroma Technology is an employee-owned company. They specialize in the design and manufacture of sputtered optical filters and coatings for applications that require the greatest precision in color separation, optical quality and signal purity. Their astronomical filters are used worldwide in research and amateur applications. They are as comfortable designing and manufacturing custom filters as they are for their catalog items. Highly precise and accurate, the passbands of these filters remain spectrally stable and do not drift in response to extreme temperature fluctuations or changes in humidity. All filters may be used with apertures of f\/4 or smaller. Chroma provides custom coating services for more demanding imaging applications requiring larger apertures such as f\/3 or f\/2. They also can provide larger sizes and unique passbands upon request. Chroma manufactures the highest quality astronomy filters with durable, sputtered hard coatings using single substrates of the best glass, eliminating the need for laminations. All primary filter coatings are applied on the front surface and anti-reflection coatings on the rear surface to prevent ghosting and to maximize transmission. All filters are manufactured in Vermont.\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDurable sputter coatings\u003cbr\u003eParallelism: \u0026lt;30 arcsec\u003cbr\u003eThickness: 3.0 +\/-0.05mm\u003cbr\u003eFilters designed for use with CCD and for f\/4.0 or slower\u003cbr\u003eTransmitted wavefront better than 0.25 waves\/inch\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eIn the Box\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan\u003eChroma 8nm H-Alpha Filter of the chosen size\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.chroma.com\/sites\/default\/files\/Astronomy-Brochure-2022.pdf\" data-mce-href=\"https:\/\/www.chroma.com\/sites\/default\/files\/Astronomy-Brochure-2022.pdf\" target=\"_blank\"\u003eChroma Astronomy Filters \u0026amp; Sets Brochure\u003c\/a\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eLifetime Warranty for Sputtered Catalog Filters\u003c\/p\u003e","brand":"Chroma","offers":[{"title":"1.25″ round mounted","offer_id":43647953567973,"sku":"CHR-27003-1.25","price":385.0,"currency_code":"CAD","in_stock":true},{"title":"2″ round mounted","offer_id":43647953600741,"sku":"CHR-27003-2","price":1162.0,"currency_code":"CAD","in_stock":true},{"title":"31mm round unmounted","offer_id":43647953633509,"sku":"CHR-27003-31","price":385.0,"currency_code":"CAD","in_stock":true},{"title":"36mm round unmounted","offer_id":43647953666277,"sku":"CHR-27003-36","price":497.0,"currency_code":"CAD","in_stock":true},{"title":"50mm round unmounted","offer_id":43647953699045,"sku":"CHR-27003-50","price":1092.0,"currency_code":"CAD","in_stock":true},{"title":"50x50 square unmounted","offer_id":43647953731813,"sku":"CHR-27003-50S","price":1106.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/chroma-8nm-h-alpha-filter-astronomy-plus-1.webp?v=1690483351"},{"product_id":"chroma-3nm-h-beta-filter","title":"Chroma 3nm H-Beta Filter","description":"\u003ch2\u003eChroma 3nm H-Beta Filter\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eH-beta filters are also useful for imaging nebulae and objects rich in ionized hydrogen. At 486.1nm, a narrow-band filter is required to separate H-beta from nearby blue and green spectral lines. Although weaker than the H-alpha line, this is often used for visual detection as the longer red wavelengths of H-alpha are difficult to detect by eye\u003c\/li\u003e\n\u003cli\u003eExtremely durable coatings withstand humidity changes and extreme temperature fluxes and remain spectrally accurate\u003cbr\u003ein CWL and band pass adherence\u003c\/li\u003e\n\u003cli\u003eNo reflections leading to image distortions or “back reflections”\u003c\/li\u003e\n\u003c\/ul\u003e\nThe Chroma 3nm H-beta Filter is also useful for imaging nebulae and objects rich in ionized hydrogen. At 486.1nm, a narrowband filter is required to separate H-beta from nearby blue and green spectral lines. Although weaker than the H-alpha line, this is often used for visual detection as the longer red wavelengths of H-alpha are difficult to detect by eye. Chroma Technology is an employee-owned company. They specialize in the design and manufacture of sputtered optical filters and coatings for applications that require the greatest precision in color separation, optical quality and signal purity. Their astronomical filters are used worldwide in research and amateur applications. They are as comfortable designing and manufacturing custom filters as they are for their catalog items. Highly precise and accurate, the passbands of these filters remain spectrally stable and do not drift in response to extreme temperature fluctuations or changes in humidity. All filters may be used with apertures of f\/4 or smaller. Chroma provides custom coating services for more demanding imaging applications requiring larger apertures such as f\/3 or f\/2. They also can provide larger sizes and unique passbands upon request. Chroma manufactures the highest quality astronomy filters with durable, sputtered hard coatings using single substrates of the best glass, eliminating the need for laminations. All primary filter coatings are applied on the front surface and anti-reflection coatings on the rear surface to prevent ghosting and to maximize transmission. All filters are manufactured in Vermont.\n\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDurable sputter coatings\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eParallelism: \u0026lt;30 arcsec\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThickness: 3.0 +\/-0.05mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eFilters designed for use with CCD and for f\/4.0 or slower\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eTransmitted wavefront better than 0.25 waves\/inch\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eIn the Box\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan\u003eChroma 3nm H-beta Filter of the chosen size\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.chroma.com\/sites\/default\/files\/Astronomy-Brochure-2022.pdf\" target=\"_blank\"\u003eChroma Astronomy Filters \u0026amp; Sets Brochure\u003c\/a\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eLifetime Warranty for Sputtered Catalog Filters\u003c\/p\u003e","brand":"Chroma","offers":[{"title":"1.25″ round mounted","offer_id":43647747129573,"sku":"CHR-27004-1.25","price":805.0,"currency_code":"CAD","in_stock":true},{"title":"2″ round mounted","offer_id":43647747162341,"sku":"CHR-27004-2","price":1820.0,"currency_code":"CAD","in_stock":true},{"title":"31mm round unmounted","offer_id":43647747195109,"sku":"CHR-27004-31","price":805.0,"currency_code":"CAD","in_stock":true},{"title":"36mm round unmounted","offer_id":43647747227877,"sku":"CHR-27004-36","price":1085.0,"currency_code":"CAD","in_stock":true},{"title":"50mm round unmounted","offer_id":43647747260645,"sku":"CHR-27004-50","price":1750.0,"currency_code":"CAD","in_stock":true},{"title":"50x50mm Square unmounted","offer_id":43647747293413,"sku":"CHR-27004-50S","price":2170.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/chroma-3nm-h-beta-filter-astronomy-plus-1.webp?v=1690483351"},{"product_id":"chroma-5nm-h-beta-filter","title":"Chroma 5nm H-Beta Filter","description":"\u003ch2\u003eChroma 5nm H-beta Filter\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eH-beta filters are also useful for imaging nebulae and objects rich in ionized hydrogen. At 486.1nm, a narrow-band filter is required to separate H-beta from nearby blue and green spectral lines. Although weaker than the H-alpha line, this is often used for visual detection as the longer red wavelengths of H-alpha are difficult to detect by eye\u003c\/li\u003e\n\u003cli\u003eExtremely durable coatings withstand humidity changes and extreme temperature fluxes and remain spectrally accurate\u003cbr\u003ein CWL and band pass adherence\u003c\/li\u003e\n\u003cli\u003eNo reflections leading to image distortions or “back reflections”\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Chroma 5nm H-beta Filter is also useful for imaging nebulae and objects rich in ionized hydrogen. At 486.1nm, a narrowband filter is required to separate H-beta from nearby blue and green spectral lines. Although weaker than the H-alpha line, this is often used for visual detection as the longer red wavelengths of H-alpha are difficult to detect by eye. Chroma Technology is an employee-owned company. They specialize in the design and manufacture of sputtered optical filters and coatings for applications that require the greatest precision in color separation, optical quality and signal purity. Their astronomical filters are used worldwide in research and amateur applications. They are as comfortable designing and manufacturing custom filters as they are for their catalog items. Highly precise and accurate, the passbands of these filters remain spectrally stable and do not drift in response to extreme temperature fluctuations or changes in humidity. All filters may be used with apertures of f\/4 or smaller. Chroma provides custom coating services for more demanding imaging applications requiring larger apertures such as f\/3 or f\/2. They also can provide larger sizes and unique passbands upon request. Chroma manufactures the highest quality astronomy filters with durable, sputtered hard coatings using single substrates of the best glass, eliminating the need for laminations. All primary filter coatings are applied on the front surface and anti-reflection coatings on the rear surface to prevent ghosting and to maximize transmission. All filters are manufactured in Vermont.\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan\u003eDurable sputter coatings\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eParallelism: \u0026lt;30 arcsec\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThickness: 3.0 +\/-0.05mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eFilters designed for use with CCD and for f\/4.0 or slower\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eTransmitted wavefront better than 0.25 waves\/inch\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eIn the Box\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan\u003eChroma 5nm H-beta Filter of the chosen size\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003eLifetime Warranty for Sputtered Catalog Filters\u003c\/p\u003e","brand":"Chroma","offers":[{"title":"1.25″ round mounted","offer_id":43647863095525,"sku":"CHR-27005-1.25","price":644.0,"currency_code":"CAD","in_stock":true},{"title":"2″ round mounted","offer_id":43647863128293,"sku":"CHR-27005-2","price":1365.0,"currency_code":"CAD","in_stock":true},{"title":"31mm round unmounted","offer_id":43647863161061,"sku":"CHR-27005-31","price":644.0,"currency_code":"CAD","in_stock":true},{"title":"36mm round unmounted","offer_id":43647863193829,"sku":"CHR-27005-36","price":868.0,"currency_code":"CAD","in_stock":true},{"title":"50mm round unmounted","offer_id":43647863226597,"sku":"CHR-27005-50","price":1295.0,"currency_code":"CAD","in_stock":true},{"title":"50x50mm square unmounted","offer_id":43647863259365,"sku":"CHR-27005-50S","price":1932.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/chroma-5nm-h-beta-filter-astronomy-plus-1.webp?v=1690483357"},{"product_id":"chroma-3nm-sii-filter","title":"Chroma 3nm SII Filter","description":"\u003ch2\u003eChroma 3nm SII Filter\u003c\/h2\u003e\nThe Chroma 3nm SII Filter isolates the spectral emission of singly ionized sulfur atoms, also common in nebulae. Emission is at two lines occurring as a doublet, at 671.6 and 673.1 nm. This filter also separates sulfur emission from H-alpha emission (656.3nm). Chroma Technology is an employee-owned company. They specialize in the design and manufacture of sputtered optical filters and coatings for applications that require the greatest precision in color separation, optical quality and signal purity. Their astronomical filters are used worldwide in research and amateur applications. They are as comfortable designing and manufacturing custom filters as they are for their catalog items. Highly precise and accurate, the passbands of these filters remain spectrally stable and do not drift in response to extreme temperature fluctuations or changes in humidity. All filters may be used with apertures of f\/4 or smaller. Chroma provides custom coating services for more demanding imaging applications requiring larger apertures such as f\/3 or f\/2. They also can provide larger sizes and unique passbands upon request. Chroma manufactures the highest quality astronomy filters with durable, sputtered hard coatings using single substrates of the best glass, eliminating the need for laminations. All primary filter coatings are applied on the front surface and anti-reflection coatings on the rear surface to prevent ghosting and to maximize transmission. All filters are manufactured in Vermont.\n\u003ch3\u003e\u003c\/h3\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDurable sputter coatings\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eParallelism: \u0026lt;30 arcsec\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThickness: 3.0 +\/-0.05mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eFilters designed for use with CCD and for f\/4.0 or slower\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eTransmitted wavefront better than 0.25 waves\/inch\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eIn the Box\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan\u003eChroma 3nm SII Filter of the chosen size\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.chroma.com\/sites\/default\/files\/Astronomy-Brochure-2022.pdf\" target=\"_blank\"\u003eChroma Astronomy Filters \u0026amp; Sets Brochure\u003c\/a\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eLifetime Warranty for Sputtered Catalog Filters\u003c\/p\u003e","brand":"Chroma","offers":[{"title":"1.25″ round mounted","offer_id":43647809159397,"sku":"CHR-27009-1.25","price":805.0,"currency_code":"CAD","in_stock":true},{"title":"2″ round mounted","offer_id":43647809192165,"sku":"CHR-27009-2","price":1820.0,"currency_code":"CAD","in_stock":true},{"title":"31mm round unmounted","offer_id":43647809224933,"sku":"CHR-27009-31","price":805.0,"currency_code":"CAD","in_stock":true},{"title":"36mm round unmounted","offer_id":43647809257701,"sku":"CHR-27009-36","price":1085.0,"currency_code":"CAD","in_stock":true},{"title":"50mm round unmounted","offer_id":43647809290469,"sku":"CHR-27009-50","price":1750.0,"currency_code":"CAD","in_stock":true},{"title":"50x50mm square unmounted","offer_id":43647809323237,"sku":"CHR-27009-50S","price":2170.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/chroma-3nm-sii-filter-astronomy-plus-1.webp?v=1690483357"},{"product_id":"chroma-5nm-sii-filter","title":"Chroma 5nm SII Filter","description":"\u003ch2\u003eChroma 5nm SII Filter\u003c\/h2\u003e\nThe Chroma 5nm SII Filter isolates the spectral emission of singly ionized sulfur atoms, also common in nebulae. Emission is at two lines occurring as a doublet, at 671.6 and 673.1 nm. This filter also separates sulfur emission from H-alpha emission (656.3nm). Chroma Technology is an employee-owned company. They specialize in the design and manufacture of sputtered optical filters and coatings for applications that require the greatest precision in color separation, optical quality and signal purity. Their astronomical filters are used worldwide in research and amateur applications. They are as comfortable designing and manufacturing custom filters as they are for their catalog items. Highly precise and accurate, the passbands of these filters remain spectrally stable and do not drift in response to extreme temperature fluctuations or changes in humidity. All filters may be used with apertures of f\/4 or smaller. Chroma provides custom coating services for more demanding imaging applications requiring larger apertures such as f\/3 or f\/2. They also can provide larger sizes and unique passbands upon request. Chroma manufactures the highest quality astronomy filters with durable, sputtered hard coatings using single substrates of the best glass, eliminating the need for laminations. All primary filter coatings are applied on the front surface and anti-reflection coatings on the rear surface to prevent ghosting and to maximize transmission. All filters are manufactured in Vermont.\n\u003ch3 data-mce-fragment=\"1\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eDurable sputter coatings\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eParallelism: \u0026lt;30 arcsec\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eThickness: 3.0 +\/-0.05mm\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eFilters designed for use with CCD and for f\/4.0 or slower\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eTransmitted wavefront better than 0.25 waves\/inch\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eIn the Box\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eChroma 5nm SII Filter of the chosen size\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003eLifetime Warranty for Sputtered Catalog Filters\u003c\/p\u003e\n\u003ch3\u003e\u003c\/h3\u003e","brand":"Chroma","offers":[{"title":"1.25″ round mounted","offer_id":43647924306149,"sku":"CHR-27010-1.25","price":644.0,"currency_code":"CAD","in_stock":true},{"title":"2″ round mounted","offer_id":43647924338917,"sku":"CHR-27010-2","price":1365.0,"currency_code":"CAD","in_stock":true},{"title":"31mm round unmounted","offer_id":43647924371685,"sku":"CHR-27010-31","price":644.0,"currency_code":"CAD","in_stock":true},{"title":"36mm round unmounted","offer_id":43647924404453,"sku":"CHR-27010-36","price":868.0,"currency_code":"CAD","in_stock":true},{"title":"50mm round unmounted","offer_id":43647924437221,"sku":"CHR-27010-50","price":1295.0,"currency_code":"CAD","in_stock":true},{"title":"50x50mm square unmounted","offer_id":43647924469989,"sku":"CHR-27010-50S","price":1932.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/chroma-5nm-sii-filter-astronomy-plus-1.webp?v=1690483357"},{"product_id":"chroma-8nm-sii-filter","title":"Chroma 8nm SII Filter","description":"\u003ch2\u003eChroma 8nm SII Filter\u003c\/h2\u003e\n\u003cp\u003eThe Chroma 8nm SII Filter isolates the spectral emission of singly ionized sulfur atoms, also common in nebulae. Emission is at two lines occurring as a doublet, at 671.6 and 673.1 nm. This filter also separates sulfur emission from H-alpha emission (656.3nm). Chroma Technology is an employee-owned company. They specialize in the design and manufacture of sputtered optical filters and coatings for applications that require the greatest precision in color separation, optical quality and signal purity. Their astronomical filters are used worldwide in research and amateur applications. They are as comfortable designing and manufacturing custom filters as they are for their catalog items. Highly precise and accurate, the passbands of these filters remain spectrally stable and do not drift in response to extreme temperature fluctuations or changes in humidity. All filters may be used with apertures of f\/4 or smaller. Chroma provides custom coating services for more demanding imaging applications requiring larger apertures such as f\/3 or f\/2. They also can provide larger sizes and unique passbands upon request. Chroma manufactures the highest quality astronomy filters with durable, sputtered hard coatings using single substrates of the best glass, eliminating the need for laminations. All primary filter coatings are applied on the front surface and anti-reflection coatings on the rear surface to prevent ghosting and to maximize transmission. All filters are manufactured in Vermont.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDurable sputter coatings\u003cbr\u003eParallelism: \u0026lt;30 arcsec\u003cbr\u003eThickness: 3.0 +\/-0.05mm\u003cbr\u003eFilters designed for use with CCD and for f\/4.0 or slower\u003cbr\u003eTransmitted wavefront better than 0.25 waves\/inch\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eIn the Box\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan\u003eChroma 8nm SII Filter of the chosen size\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.chroma.com\/sites\/default\/files\/Astronomy-Brochure-2022.pdf\" target=\"_blank\" data-mce-href=\"https:\/\/www.chroma.com\/sites\/default\/files\/Astronomy-Brochure-2022.pdf\"\u003eChroma Astronomy Filters \u0026amp; Sets Brochure\u003c\/a\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eLifetime Warranty for Sputtered Catalog Filters\u003c\/p\u003e","brand":"Chroma","offers":[{"title":"1.25″ round mounted","offer_id":43648000327909,"sku":"CHR-27011-1.25","price":385.0,"currency_code":"CAD","in_stock":true},{"title":"2″ round mounted","offer_id":43648000360677,"sku":"CHR-27011-2","price":1162.0,"currency_code":"CAD","in_stock":true},{"title":"31mm round unmounted","offer_id":43648000393445,"sku":"CHR-27011-31","price":385.0,"currency_code":"CAD","in_stock":true},{"title":"36mm round unmounted","offer_id":43648000426213,"sku":"CHR-27011-36","price":497.0,"currency_code":"CAD","in_stock":true},{"title":"50mm round unmounted","offer_id":43648000458981,"sku":"CHR-27011-50","price":1092.0,"currency_code":"CAD","in_stock":true},{"title":"50x50mm square unmounted","offer_id":43648000491749,"sku":"CHR-27011-50S","price":1106.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/chroma-8nm-sii-filter-astronomy-plus-1.webp?v=1690483357"},{"product_id":"chroma-3nm-oiii-filter","title":"Chroma 3nm OIII Filter","description":"\u003ch2\u003eChroma 3nm OIII Filter\u003c\/h2\u003e\nThe Chroma 3nm OIII Filter isolates the 500.7nm primary emission line of doubly ionized oxygen. After H-alpha, this is the next most common emission when imaging nebulae. Chroma Technology is an employee-owned company. They specialize in the design and manufacture of sputtered optical filters and coatings for applications that require the greatest precision in color separation, optical quality and signal purity. Their astronomical filters are used worldwide in research and amateur applications. They are as comfortable designing and manufacturing custom filters as they are for their catalog items. Highly precise and accurate, the passbands of these filters remain spectrally stable and do not drift in response to extreme temperature fluctuations or changes in humidity. All filters may be used with apertures of f\/4 or smaller. Chroma provides custom coating services for more demanding imaging applications requiring larger apertures such as f\/3 or f\/2. They also can provide larger sizes and unique passbands upon request. Chroma manufactures the highest quality astronomy filters with durable, sputtered hard coatings using single substrates of the best glass, eliminating the need for laminations. All primary filter coatings are applied on the front surface and anti-reflection coatings on the rear surface to prevent ghosting and to maximize transmission. All filters are manufactured in Vermont.\n\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDurable sputter coatings\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eParallelism: \u0026lt;30 arcsec\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThickness: 3.0 +\/-0.05mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eFilters designed for use with CCD and for f\/4.0 or slower\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eTransmitted wavefront better than 0.25 waves\/inch\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eIn the Box\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan\u003eChroma 3nm OIII Filter of the chosen size\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.chroma.com\/sites\/default\/files\/Astronomy-Brochure-2022.pdf\" target=\"_blank\"\u003eChroma Astronomy Filters \u0026amp; Sets Brochure\u003c\/a\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eLifetime Warranty for Sputtered Catalog Filters\u003c\/p\u003e","brand":"Chroma","offers":[{"title":"1.25″ round mounted","offer_id":43647786189029,"sku":"CHR-27006-1.25","price":805.0,"currency_code":"CAD","in_stock":true},{"title":"2″ round mounted","offer_id":43647786221797,"sku":"CHR-27006-2","price":1820.0,"currency_code":"CAD","in_stock":true},{"title":"31mm round unmounted","offer_id":43647786254565,"sku":"CHR-27006-31","price":805.0,"currency_code":"CAD","in_stock":true},{"title":"36mm round unmounted","offer_id":43647786287333,"sku":"CHR-27006-36","price":1085.0,"currency_code":"CAD","in_stock":true},{"title":"50mm round unmounted","offer_id":43647786320101,"sku":"CHR-27006-50","price":1750.0,"currency_code":"CAD","in_stock":true},{"title":"50x50mm square unmounted","offer_id":43647786352869,"sku":"CHR-27006-50S","price":2170.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/chroma-3nm-oiii-filter-astronomy-plus-1.webp?v=1690483357"},{"product_id":"chroma-5nm-oiii-filter","title":"Chroma 5nm OIII Filter","description":"\u003ch2\u003eChroma 5nm OIII Filter\u003c\/h2\u003e\n\u003cp\u003eThe Chroma 5nm OIII Filter isolates the 500.7nm primary emission line of doubly ionized oxygen. After H-alpha, this is the next most common emission when imaging nebulae. Chroma Technology is an employee-owned company. They specialize in the design and manufacture of sputtered optical filters and coatings for applications that require the greatest precision in color separation, optical quality and signal purity. Their astronomical filters are used worldwide in research and amateur applications. They are as comfortable designing and manufacturing custom filters as they are for their catalog items. Highly precise and accurate, the passbands of these filters remain spectrally stable and do not drift in response to extreme temperature fluctuations or changes in humidity. All filters may be used with apertures of f\/4 or smaller. Chroma provides custom coating services for more demanding imaging applications requiring larger apertures such as f\/3 or f\/2. They also can provide larger sizes and unique passbands upon request. Chroma manufactures the highest quality astronomy filters with durable, sputtered hard coatings using single substrates of the best glass, eliminating the need for laminations. All primary filter coatings are applied on the front surface and anti-reflection coatings on the rear surface to prevent ghosting and to maximize transmission. All filters are manufactured in Vermont.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan\u003eDurable sputter coatings\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eParallelism: \u0026lt;30 arcsec\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThickness: 3.0 +\/-0.05mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eFilters designed for use with CCD and for f\/4.0 or slower\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eTransmitted wavefront better than 0.25 waves\/inch\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eIn the Box\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan\u003eChroma 5nm OIII Filter of the chosen size\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003eLifetime Warranty for Sputtered Catalog Filters\u003c\/p\u003e","brand":"Chroma","offers":[{"title":"1.25″ round mounted","offer_id":43647896256741,"sku":"CHR-27007-1.25","price":644.0,"currency_code":"CAD","in_stock":true},{"title":"2″ round mounted","offer_id":43647896289509,"sku":"CHR-27007-2","price":1365.0,"currency_code":"CAD","in_stock":true},{"title":"31mm round unmounted","offer_id":43647896322277,"sku":"CHR-27007-31","price":644.0,"currency_code":"CAD","in_stock":true},{"title":"36mm round unmounted","offer_id":43647896355045,"sku":"CHR-27007-36","price":868.0,"currency_code":"CAD","in_stock":true},{"title":"50mm round unmounted","offer_id":43647896387813,"sku":"CHR-27007-50","price":1295.0,"currency_code":"CAD","in_stock":true},{"title":"50x50mm square unmounted","offer_id":43647896453349,"sku":"CHR-27007-50S","price":1932.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/chroma-5nm-oiii-filter-astronomy-plus-1.webp?v=1690483363"},{"product_id":"chroma-8nm-oiii-filter","title":"Chroma 8nm OIII Filter","description":"\u003ch2\u003eChroma 8nm OIII Filter\u003c\/h2\u003e\nThe Chroma 8nm OIII Filter isolates the 500.7nm primary emission line of doubly ionized oxygen. After H-alpha, this is the next most common emission when imaging nebulae. Chroma Technology is an employee-owned company. They specialize in the design and manufacture of sputtered optical filters and coatings for applications that require the greatest precision in color separation, optical quality and signal purity. Their astronomical filters are used worldwide in research and amateur applications. They are as comfortable designing and manufacturing custom filters as they are for their catalog items. Highly precise and accurate, the passbands of these filters remain spectrally stable and do not drift in response to extreme temperature fluctuations or changes in humidity. All filters may be used with apertures of f\/4 or smaller. Chroma provides custom coating services for more demanding imaging applications requiring larger apertures such as f\/3 or f\/2. They also can provide larger sizes and unique passbands upon request. Chroma manufactures the highest quality astronomy filters with durable, sputtered hard coatings using single substrates of the best glass, eliminating the need for laminations. All primary filter coatings are applied on the front surface and anti-reflection coatings on the rear surface to prevent ghosting and to maximize transmission. All filters are manufactured in Vermont.\n\u003ch3\u003e\u003c\/h3\u003e\n\u003ch3\u003eTechnical Specifications\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDurable sputter coatings\u003cbr\u003eParallelism: \u0026lt;30 arcsec\u003cbr\u003eThickness: 3.0 +\/-0.05mm\u003cbr\u003eFilters designed for use with CCD and for f\/4.0 or slower\u003cbr\u003eTransmitted wavefront better than 0.25 waves\/inch\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eIn the Box\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan\u003eChroma 8nm OIII Filter of the chosen size\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.chroma.com\/sites\/default\/files\/Astronomy-Brochure-2022.pdf\" target=\"_blank\" data-mce-href=\"https:\/\/www.chroma.com\/sites\/default\/files\/Astronomy-Brochure-2022.pdf\"\u003eChroma Astronomy Filters \u0026amp; Sets Brochure\u003c\/a\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eLifetime Warranty for Sputtered Catalog Filters\u003c\/p\u003e","brand":"Chroma","offers":[{"title":"1.25″ round mounted","offer_id":43647980536037,"sku":"CHR-27008-1.25","price":385.0,"currency_code":"CAD","in_stock":true},{"title":"2″ round mounted","offer_id":43647980568805,"sku":"CHR-27008-2","price":1162.0,"currency_code":"CAD","in_stock":true},{"title":"31mm round unmounted","offer_id":43647980601573,"sku":"CHR-27008-31","price":385.0,"currency_code":"CAD","in_stock":true},{"title":"36mm round unmounted","offer_id":43647980667109,"sku":"CHR-27008-36","price":497.0,"currency_code":"CAD","in_stock":true},{"title":"50mm round unmounted","offer_id":43647980699877,"sku":"CHR-27008-50","price":1092.0,"currency_code":"CAD","in_stock":true},{"title":"50x50 square unmounted","offer_id":43647980732645,"sku":"CHR-27008-50S","price":1106.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/chroma-8nm-oiii-filter-astronomy-plus-1.webp?v=1690483363"},{"product_id":"chroma-halrgb-filter-set","title":"Chroma HaLRGB Filter Set","description":"\u003ch2\u003eChroma HaLRGB Filter Set\u003c\/h2\u003e\n\u003cp\u003eThe Chroma HaLRGB Filter Set includes five individual filters: 8nm H-alpha, luminance, red, green and blue. They are available in multiple sizes. H-alpha filters are essential for imaging nebulae and other objects which are rich in ionized hydrogen. At 656.3nm, a narrow-band emission filter is required to separate H-alpha from the SII doublet (671.6nm and 673.1nm). Highly precise and accurate, the passbands of these filters remain spectrally stable and do not drift in response to extreme temperature fluctuations or changes in humidity. All filters may be used with apertures of f\/4 or smaller. We provide custom coating services for more demanding imaging applications requiring larger apertures such as f\/3 or f\/2. We also can provide larger sizes and unique passbands upon request. Chroma Technology is an employee-owned company. They specialize in the design and manufacture of sputtered optical filters and coatings for applications that require the greatest precision in color separation, optical quality and signal purity. Their astronomical filters are used worldwide in research and amateur applications. They are as comfortable designing and manufacturing custom filters as they are for their catalog items. We manufacture the highest quality astronomy filters with durable, sputtered hard coatings using single substrates of the best glass, eliminating the need for laminations. All primary filter coatings are applied on the front surface and anti-reflection coatings on the rear surface to prevent ghosting and to maximize transmission. All filters are manufactured in Vermont.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAdditional features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eH-alpha filters are essential for imaging nebulae and other objects which are rich in ionized hydrogen. At 656.3nm, a narrow-band emission filter is required to separate H-alpha from the SII doublet (671.6nm and 673.1nm).\u003c\/li\u003e\n\u003cli\u003eExtremely durable coatings withstand humidity changes and extreme temperature fluxes and remain spectrally accurate\u003cbr\u003ein CWL and band pass adherence\u003c\/li\u003e\n\u003cli\u003eNo reflections leading to image distortions or “back reflections”\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDurable sputter coatings\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eParallelism: \u0026lt;30 arcsec\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThickness: 3.0 +\/-0.05mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eFilters designed for use with CCD and for f\/4.0 or slower\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eTransmitted wavefront better than 0.25 waves\/inch\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eIn the Box\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan\u003eChroma 8 nm Ha + LRGB Filter Set of the chosen size\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.chroma.com\/sites\/default\/files\/Astronomy-Brochure-2022.pdf\" target=\"_blank\" data-mce-href=\"https:\/\/www.chroma.com\/sites\/default\/files\/Astronomy-Brochure-2022.pdf\"\u003eChroma Astronomy Filters \u0026amp; Sets Brochure\u003c\/a\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eLifetime Warranty for Sputtered Catalog Filters\u003c\/p\u003e","brand":"Chroma","offers":[{"title":"1.25\" round mounted","offer_id":43651934912741,"sku":"CHR-27102-1.25","price":1085.0,"currency_code":"CAD","in_stock":true},{"title":"2\" round mounted","offer_id":43651934945509,"sku":"CHR-27102-2","price":3822.0,"currency_code":"CAD","in_stock":true},{"title":"31mm round unmounted","offer_id":43651934978277,"sku":"CHR-27102-31","price":1085.0,"currency_code":"CAD","in_stock":true},{"title":"36mm round unmounted","offer_id":43651935011045,"sku":"CHR-27102-36","price":1617.0,"currency_code":"CAD","in_stock":true},{"title":"50mm round unmounted","offer_id":43651935043813,"sku":"CHR-27102-50","price":3472.0,"currency_code":"CAD","in_stock":true},{"title":"50mmx50mm square unmounted","offer_id":43651935076581,"sku":"CHR-27102-50S","price":3626.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/chroma-halrgb-filter-set-astronomy-plus_802e891b-aa35-4e54-95a9-a21c15f5a962.png?v=1690483363"},{"product_id":"chroma-bessel-ubvri-filter-set","title":"Chroma Bessel UBVRI Filter Set","description":"\u003ch2\u003eChroma Bessel UBVRI Filter Set\u003c\/h2\u003e\n\u003cp\u003eU-Bessel: UV photometric filter in UVBRI series\u003cbr\u003eV-Bessel: Green (Visible) photometric filter in UVBRI series\u003cbr\u003eB-Bessel: Blue photometric filter in UVBRI series\u003cbr\u003eR-Bessel: Red photometric filter in UVBRI series\u003cbr\u003eI-Bessel: NIR photometric filter in UVBRI series\u003c\/p\u003e\n\u003cp\u003eChroma Technology is an employee-owned company. They specialize in the design and manufacture of sputtered optical filters and coatings for applications that require the greatest precision in color separation, optical quality and signal purity. Their astronomical filters are used worldwide in research and amateur applications. They are as comfortable designing and manufacturing custom filters as they are for their catalog items.\u003c\/p\u003e\n\u003cp\u003eHighly precise and accurate, the passbands of these filters remain spectrally stable and do not drift in response to extreme temperature fluctuations or changes in humidity. All filters may be used with apertures of f\/4 or smaller. Chroma provides custom coating services for more demanding imaging applications requiring larger apertures such as f\/3 or f\/2. They also can provide larger sizes and unique passbands upon request.\u003c\/p\u003e\n\u003cp\u003eChroma manufactures the highest quality astronomy filters with durable, sputtered hard coatings using single substrates of the best glass, eliminating the need for laminations. All primary filter coatings are applied on the front surface and anti-reflection coatings on the rear surface to prevent ghosting and to maximize transmission.\u003c\/p\u003e\n\u003cp\u003eAll filters are manufactured in Vermont.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAdditional Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUBVRI filter set for photometric imaging\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eExtremely durable coatings withstand humidity changes and extreme temperature fluxes and remain spectrally accurate \u003c\/span\u003e\u003cspan\u003ein CWL and band pass adherence\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eNo reflections leading to image distortions or “back reflections”\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Chroma Bessel UBVRI Filter Set is made for photometric imaging in five different bandpass.\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDurable, anti-reflective coatings onboth exterior surfaces over applicable transmission range\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThickness: 4.9 +\/-0.05mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eParfocal +\/-0.2mm\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eIn the Box\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan\u003eChroma Bessel UBVRI Filter Set of the chosen size\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.chroma.com\/sites\/default\/files\/Astronomy-Brochure-2022.pdf\" target=\"_blank\" data-mce-href=\"https:\/\/www.chroma.com\/sites\/default\/files\/Astronomy-Brochure-2022.pdf\"\u003eChroma Astronomy Filters \u0026amp; Sets Brochure\u003c\/a\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eLifetime Warranty for Sputtered Catalog Filters\u003c\/p\u003e","brand":"Chroma","offers":[{"title":"1.25″ round mounted","offer_id":43651392864485,"sku":"CHR-27103-1.25","price":1645.0,"currency_code":"CAD","in_stock":true},{"title":"2″ round mounted","offer_id":43651392897253,"sku":"CHR-27103-2","price":4620.0,"currency_code":"CAD","in_stock":true},{"title":"50mm round unmounted","offer_id":43651392930021,"sku":"CHR-27103-50","price":4270.0,"currency_code":"CAD","in_stock":true},{"title":"50mm x 50mm square unmounted","offer_id":43651392962789,"sku":"CHR-27103-50S","price":4795.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/chroma-bessel-ubvri-filter-set-astronomy-plus_6183b9d4-7d3d-46cb-bf11-12af67550a36.png?v=1690483372"},{"product_id":"chroma-lrgb-individual-filters","title":"Chroma LRGB Individual Filters","description":"\u003ch2\u003eChroma LRGB Individual Filters\u003c\/h2\u003e\n\u003cp\u003eYou have the option to buy Chroma LRGB filters individually. The Lum, Red, Green \u0026amp; Blue filters are also available in multiple sizes.\u003c\/p\u003e\n\u003cp\u003eHighly precise and accurate, the passbands of these filters remain spectrally stable and do not drift in response to extreme temperature fluctuations or changes in humidity. All filters may be used with apertures of f\/4 or smaller. We provide custom coating services for more demanding imaging applications requiring larger apertures such as f\/3 or f\/2. We also can provide larger sizes and unique passbands upon request.\u003c\/p\u003e\n\u003cp\u003eChroma Technology is an employee-owned company. They specialize in the design and manufacture of sputtered optical filters and coatings for applications that require the greatest precision in color separation, optical quality and signal purity. Their astronomical filters are used worldwide in research and amateur applications. They are as comfortable designing and manufacturing custom filters as they are for their catalog items.\u003c\/p\u003e\n\u003cp\u003eWe manufacture the highest quality astronomy filters with durable, sputtered hard coatings using single substrates of the best glass, eliminating the need for laminations. All primary filter coatings are applied on the front surface and anti-reflection coatings on the rear surface to prevent ghosting and to maximize transmission.\u003c\/p\u003e\n\u003cp\u003eAll filters are manufactured in Vermont.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAdditional Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eExtremely durable coatings withstand humidity changes and extreme temperature fluxes and remain spectrally accurate\u003cbr\u003ein CWL and band pass adherence\u003c\/li\u003e\n\u003cli\u003eNo reflections leading to image distortions or “back reflections”\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDurable sputter coatings\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eParallelism: \u0026lt;30 arcsec\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThickness: 3.0 +\/-0.05mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eFilters designed for use with CCD and for f\/4.0 or slower\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eTransmitted wavefront better than 0.25 waves\/inch\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eIn the Box\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan\u003eFilter of the chosen size and color\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.chroma.com\/sites\/default\/files\/Astronomy-Brochure-2022.pdf\" data-mce-href=\"https:\/\/www.chroma.com\/sites\/default\/files\/Astronomy-Brochure-2022.pdf\" target=\"_blank\"\u003eChroma Astronomy Filters \u0026amp; Sets Brochure\u003c\/a\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eLifetime Warranty for Sputtered Catalog Filters\u003c\/p\u003e","brand":"Chroma","offers":[{"title":"1.25\" round mounted \/ Luminance (27040)","offer_id":43652254138597,"sku":"CHR-27040-1.25","price":210.0,"currency_code":"CAD","in_stock":true},{"title":"1.25\" round mounted \/ Red (27041)","offer_id":43652254204133,"sku":"CHR-27041-1.25","price":210.0,"currency_code":"CAD","in_stock":true},{"title":"1.25\" round mounted \/ Green (27042)","offer_id":43652254269669,"sku":"CHR-27042-1.25","price":210.0,"currency_code":"CAD","in_stock":true},{"title":"1.25\" round mounted \/ Blue (27043)","offer_id":43652254335205,"sku":"CHR-27043-1.25","price":210.0,"currency_code":"CAD","in_stock":true},{"title":"2\" round mounted \/ Luminance (27040)","offer_id":43652254367973,"sku":"CHR-27040-2","price":700.0,"currency_code":"CAD","in_stock":true},{"title":"2\" round mounted \/ Red (27041)","offer_id":43652254466277,"sku":"CHR-27041-2","price":700.0,"currency_code":"CAD","in_stock":true},{"title":"2\" round mounted \/ Green (27042)","offer_id":43652254499045,"sku":"CHR-27042-2","price":700.0,"currency_code":"CAD","in_stock":true},{"title":"2\" round mounted \/ Blue (27043)","offer_id":43652254564581,"sku":"CHR-27043-2","price":700.0,"currency_code":"CAD","in_stock":true},{"title":"31mm round unmounted \/ Luminance (27040)","offer_id":43652254630117,"sku":"CHR-27040-31","price":210.0,"currency_code":"CAD","in_stock":true},{"title":"31mm round unmounted \/ Red (27041)","offer_id":43652254662885,"sku":"CHR-27041-31","price":210.0,"currency_code":"CAD","in_stock":true},{"title":"31mm round unmounted \/ Green (27042)","offer_id":43652254695653,"sku":"CHR-27042-31","price":210.0,"currency_code":"CAD","in_stock":true},{"title":"31mm round unmounted \/ Blue (27043)","offer_id":43652254728421,"sku":"CHR-27043-31","price":210.0,"currency_code":"CAD","in_stock":true},{"title":"36mm round unmounted \/ Luminance (27040)","offer_id":43652254761189,"sku":"CHR-27040-36","price":315.0,"currency_code":"CAD","in_stock":true},{"title":"36mm round unmounted \/ Red (27041)","offer_id":43652254793957,"sku":"CHR-27041-36","price":315.0,"currency_code":"CAD","in_stock":true},{"title":"36mm round unmounted \/ Green (27042)","offer_id":43652254826725,"sku":"CHR-27042-36","price":315.0,"currency_code":"CAD","in_stock":true},{"title":"36mm round unmounted \/ Blue (27043)","offer_id":43652254859493,"sku":"CHR-27043-36","price":315.0,"currency_code":"CAD","in_stock":true},{"title":"50mm round unmounted \/ Luminance (27040)","offer_id":43652254892261,"sku":"CHR-27040-50","price":630.0,"currency_code":"CAD","in_stock":true},{"title":"50mm round unmounted \/ Red (27041)","offer_id":43652254925029,"sku":"CHR-27041-50","price":630.0,"currency_code":"CAD","in_stock":true},{"title":"50mm round unmounted \/ Green (27042)","offer_id":43652254957797,"sku":"CHR-27042-50","price":630.0,"currency_code":"CAD","in_stock":true},{"title":"50mm round unmounted \/ Blue (27043)","offer_id":43652254990565,"sku":"CHR-27043-50","price":630.0,"currency_code":"CAD","in_stock":true},{"title":"50x50mm square unmounted \/ Luminance (27040)","offer_id":43652255023333,"sku":"CHR-27040-50S","price":665.0,"currency_code":"CAD","in_stock":true},{"title":"50x50mm square unmounted \/ Red (27041)","offer_id":43652255056101,"sku":"CHR-27041-50S","price":665.0,"currency_code":"CAD","in_stock":true},{"title":"50x50mm square unmounted \/ Green (27042)","offer_id":43652255088869,"sku":"CHR-27042-50S","price":665.0,"currency_code":"CAD","in_stock":true},{"title":"50x50mm square unmounted \/ Blue (27043)","offer_id":43652255121637,"sku":"CHR-27043-50S","price":665.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/chroma-lrgb-individual-filters-astronomy-plus-1_5632751b-5e09-4f32-8342-efb57681df82.png?v=1690483380"},{"product_id":"chroma-bessel-ubvri-individual-filters","title":"Chroma Bessel UBVRI Individual Filters","description":"\u003ch2\u003eChroma Bessel UBVRI Individual Filters\u003c\/h2\u003e\n\u003cp\u003eThe Chroma Bessel UBVRI Filters are made for photometric imaging in five different bandpass. They are available for purchase individually.\u003c\/p\u003e\n\u003cp\u003eU-Bessel: UV photometric filter in UBVRI series\u003cbr\u003eB-Bessel: Blue photometric filter in UBVRI series\u003cbr\u003eV-Bessel: Green (Visible) photometric filter in UBVRI series\u003cbr\u003eR-Bessel: Red photometric filter in UBVRI series\u003cbr\u003eI-Bessel: NIR photometric filter in UBVRI series\u003c\/p\u003e\n\u003cp\u003eChroma Technology is an employee-owned company. They specialize in the design and manufacture of sputtered optical filters and coatings for applications that require the greatest precision in color separation, optical quality and signal purity. Their astronomical filters are used worldwide in research and amateur applications. They are as comfortable designing and manufacturing custom filters as they are for their catalog items.\u003c\/p\u003e\n\u003cp\u003eHighly precise and accurate, the passbands of these filters remain spectrally stable and do not drift in response to extreme temperature fluctuations or changes in humidity. All filters may be used with apertures of f\/4 or smaller. Chroma provides custom coating services for more demanding imaging applications requiring larger apertures such as f\/3 or f\/2. They also can provide larger sizes and unique passbands upon request.\u003c\/p\u003e\n\u003cp\u003eChroma manufactures the highest quality astronomy filters with durable, sputtered hard coatings using single substrates of the best glass, eliminating the need for laminations. All primary filter coatings are applied on the front surface and anti-reflection coatings on the rear surface to prevent ghosting and to maximize transmission.\u003c\/p\u003e\n\u003cp\u003eAll filters are manufactured in Vermont.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAdditional Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUBVRI filter set for photometric imaging\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eExtremely durable coatings withstand humidity changes and extreme temperature fluxes and remain spectrally accurate \u003c\/span\u003e\u003cspan\u003ein CWL and band pass adherence\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eNo reflections leading to image distortions or “back reflections”\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Chroma Bessel UBVRI Filter Set is made for photometric imaging in five different bandpass.\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDurable, anti-reflective coatings onboth exterior surfaces over applicable transmission range\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThickness: 4.9 +\/-0.05mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eParfocal +\/-0.2mm\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eIn the Box\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan\u003eChroma Bessel UBVRI Filter Set of the chosen size\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.chroma.com\/sites\/default\/files\/Astronomy-Brochure-2022.pdf\" data-mce-href=\"https:\/\/www.chroma.com\/sites\/default\/files\/Astronomy-Brochure-2022.pdf\" target=\"_blank\"\u003eChroma Astronomy Filters \u0026amp; Sets Brochure\u003c\/a\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eLifetime Warranty for Sputtered Catalog Filters\u003c\/p\u003e","brand":"Chroma","offers":[{"title":"1.25\" round mounted \/ U-Bessel (27050)","offer_id":43651453747429,"sku":"CHR-27050-1.25","price":385.0,"currency_code":"CAD","in_stock":true},{"title":"1.25\" round mounted \/ B-Bessel (27052)","offer_id":43651453780197,"sku":"CHR-27052-1.25","price":385.0,"currency_code":"CAD","in_stock":true},{"title":"1.25\" round mounted \/ V-Bessel (27051)","offer_id":43651453812965,"sku":"CHR-27051-125","price":385.0,"currency_code":"CAD","in_stock":true},{"title":"1.25\" round mounted \/ R-Besse(27053)","offer_id":43651453845733,"sku":"CHR-27053-125","price":385.0,"currency_code":"CAD","in_stock":true},{"title":"1.25\" round mounted \/ I-Bessel(27054)","offer_id":43651453878501,"sku":"CHR-27054-125","price":385.0,"currency_code":"CAD","in_stock":true},{"title":"2\" round mounted \/ U-Bessel (27050)","offer_id":43651453911269,"sku":"CHR-27050-2","price":980.0,"currency_code":"CAD","in_stock":true},{"title":"2\" round mounted \/ B-Bessel (27052)","offer_id":43651453944037,"sku":"CHR-27052-2","price":980.0,"currency_code":"CAD","in_stock":true},{"title":"2\" round mounted \/ V-Bessel (27051)","offer_id":43651453976805,"sku":"CHR-27051-2","price":980.0,"currency_code":"CAD","in_stock":true},{"title":"2\" round mounted \/ R-Besse(27053)","offer_id":43651454009573,"sku":"CHR-27053-2","price":980.0,"currency_code":"CAD","in_stock":true},{"title":"2\" round mounted \/ I-Bessel(27054)","offer_id":43651454042341,"sku":"CHR-27054-2","price":980.0,"currency_code":"CAD","in_stock":true},{"title":"31mm round unmounted \/ U-Bessel (27050)","offer_id":43651454075109,"sku":"CHR-27050-31","price":385.0,"currency_code":"CAD","in_stock":true},{"title":"31mm round unmounted \/ B-Bessel (27052)","offer_id":43651454107877,"sku":"CHR-27052-31","price":385.0,"currency_code":"CAD","in_stock":true},{"title":"31mm round unmounted \/ V-Bessel (27051)","offer_id":43651454140645,"sku":"CHR-27051-31","price":385.0,"currency_code":"CAD","in_stock":true},{"title":"31mm round unmounted \/ R-Besse(27053)","offer_id":43651454173413,"sku":"CHR-27053-31","price":385.0,"currency_code":"CAD","in_stock":true},{"title":"31mm round unmounted \/ I-Bessel(27054)","offer_id":43651454206181,"sku":"CHR-27054-31","price":385.0,"currency_code":"CAD","in_stock":true},{"title":"36mm round unmounted \/ U-Bessel (27050)","offer_id":43651454238949,"sku":"CHR-27050-36","price":483.0,"currency_code":"CAD","in_stock":true},{"title":"36mm round unmounted \/ B-Bessel (27052)","offer_id":43651454271717,"sku":"CHR-27052-36","price":483.0,"currency_code":"CAD","in_stock":true},{"title":"36mm round unmounted \/ V-Bessel (27051)","offer_id":43651454304485,"sku":"CHR-27051-36","price":483.0,"currency_code":"CAD","in_stock":true},{"title":"36mm round unmounted \/ R-Besse(27053)","offer_id":43651454337253,"sku":"CHR-27053-36","price":483.0,"currency_code":"CAD","in_stock":true},{"title":"36mm round unmounted \/ I-Bessel(27054)","offer_id":43651454370021,"sku":"CHR-27054-36","price":483.0,"currency_code":"CAD","in_stock":true},{"title":"50 round unmounted \/ U-Bessel (27050)","offer_id":43651454402789,"sku":"CHR-27050-50","price":910.0,"currency_code":"CAD","in_stock":true},{"title":"50 round unmounted \/ B-Bessel (27052)","offer_id":43651454435557,"sku":"CHR-27052-50","price":910.0,"currency_code":"CAD","in_stock":true},{"title":"50 round unmounted \/ V-Bessel (27051)","offer_id":43651454468325,"sku":"CHR-27051-50","price":910.0,"currency_code":"CAD","in_stock":true},{"title":"50 round unmounted \/ R-Besse(27053)","offer_id":43651454501093,"sku":"CHR-27053-50","price":910.0,"currency_code":"CAD","in_stock":true},{"title":"50 round unmounted \/ I-Bessel(27054)","offer_id":43651454533861,"sku":"CHR-27054-50","price":910.0,"currency_code":"CAD","in_stock":true},{"title":"50mmx50mm square unmounted \/ U-Bessel (27050)","offer_id":43651454566629,"sku":"CHR-27050-50S","price":1015.0,"currency_code":"CAD","in_stock":true},{"title":"50mmx50mm square unmounted \/ B-Bessel (27052)","offer_id":43651454599397,"sku":"CHR-27052-50S","price":1015.0,"currency_code":"CAD","in_stock":true},{"title":"50mmx50mm square unmounted \/ V-Bessel (27051)","offer_id":43651454632165,"sku":"CHR-27051-50S","price":1015.0,"currency_code":"CAD","in_stock":true},{"title":"50mmx50mm square unmounted \/ R-Besse(27053)","offer_id":43651454664933,"sku":"CHR-27053-50S","price":1015.0,"currency_code":"CAD","in_stock":true},{"title":"50mmx50mm square unmounted \/ I-Bessel(27054)","offer_id":43651454697701,"sku":"CHR-27054-50S","price":1015.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/chroma-bessel-ubvri-individual-filters-astronomy-plus_ae74472a-6588-4fd0-8935-455a0cea3ced.png?v=1690483381"},{"product_id":"chroma-jovian-methane-filter","title":"Chroma Jovian Methane Filter","description":"\u003ch2\u003eChroma Jovian Methane Filter\u003c\/h2\u003e\n\u003cp\u003eThe Chroma Jovian Methane Filter is a methane absorption band filter. This filter enhances contrast when imaging objects containing significant levels of methane. Methane-rich components, such as in the atmosphere of the Jovian planets, will appear darker.\u003c\/p\u003e\n\u003cp\u003eChroma Technology is an employee-owned company. They specialize in the design and manufacture of sputtered optical filters and coatings for applications that require the greatest precision in color separation, optical quality and signal purity. Their astronomical filters are used worldwide in research and amateur applications. They are as comfortable designing and manufacturing custom filters as they are for their catalog items.\u003c\/p\u003e\n\u003cp\u003eHighly precise and accurate, the passbands of these filters remain spectrally stable and do not drift in response to extreme temperature fluctuations or changes in humidity. All filters may be used with apertures of f\/4 or smaller. Chroma provides custom coating services for more demanding imaging applications requiring larger apertures such as f\/3 or f\/2. They also can provide larger sizes and unique passbands upon request.\u003c\/p\u003e\n\u003cp\u003eChroma manufactures the highest quality astronomy filters with durable, sputtered hard coatings using single substrates of the best glass, eliminating the need for laminations. All primary filter coatings are applied on the front surface and anti-reflection coatings on the rear surface to prevent ghosting and to maximize transmission.\u003c\/p\u003e\n\u003cp\u003eAll filters are manufactured in Vermont.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAdditional Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMethane absorption band filter. This filter enhances contrast when imaging objects containing significant levels of methane. Methane-rich components, such as in the atmosphere of the Jovian planets, will appear darker.\u003c\/li\u003e\n\u003cli\u003eExtremely durable coatings withstand humidity changes and extreme temperature fluxes and remain spectrally accurate\u003cbr\u003ein CWL and band pass adherence\u003c\/li\u003e\n\u003cli\u003eNo reflections leading to image distortions or “back reflections”\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eT: ≥ 96%@889nm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eFWHM = 18nm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eDurable sputter coatings\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eParallelism: \u0026lt;30 arcsec\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThickness: 3.0 +\/-0.05mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eFilters designed for use with CCD and for f\/4.0 or slower\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eTransmitted wavefront better than 0.25 waves\/inch\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eIn the Box\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan\u003eChroma Jovian Methane Filter of the chosen size\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.chroma.com\/sites\/default\/files\/Astronomy-Brochure-2022.pdf\" data-mce-href=\"https:\/\/www.chroma.com\/sites\/default\/files\/Astronomy-Brochure-2022.pdf\" target=\"_blank\"\u003eChroma Astronomy Filters \u0026amp; Sets Brochure\u003c\/a\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eLifetime Warranty for Sputtered Catalog Filters\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Chroma","offers":[{"title":"1.25″ round mounted","offer_id":43652005920997,"sku":"CHR-27012-1.25","price":385.0,"currency_code":"CAD","in_stock":true},{"title":"2″ round mounted","offer_id":43652005953765,"sku":"CHR-27012-2","price":1162.0,"currency_code":"CAD","in_stock":true},{"title":"31mm round unmounted","offer_id":43652005986533,"sku":"CHR-27012-31","price":385.0,"currency_code":"CAD","in_stock":true},{"title":"36mm round unmounted","offer_id":43652006019301,"sku":"CHR-27012-36","price":497.0,"currency_code":"CAD","in_stock":true},{"title":"50mm round unmounted","offer_id":43652006052069,"sku":"CHR-27012-50","price":1092.0,"currency_code":"CAD","in_stock":true},{"title":"50mm x 50mm square unmounted","offer_id":43652006084837,"sku":"CHR-27012-50S","price":1106.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/chroma-jovian-methane-filter-astronomy-plus_869235b8-05cc-425b-97cf-660de43384ab.png?v=1690483381"},{"product_id":"chroma-loglow-light-pollution-filter","title":"Chroma LoGlow Light Pollution Filter","description":"\u003ch2\u003eChroma LoGlow Light Pollution Filter\u003c\/h2\u003e\n\u003cp\u003eThe Chroma LoGlow Light Pollution Filter blocks common spectral lines from lighting sources. This filter provides balanced color for the visible spectrum while blocking most emission from metal-halide and vapor lamp sources which together contribute to sky glow.\u003c\/p\u003e\n\u003cp\u003eChroma Technology is an employee-owned company. They specialize in the design and manufacture of sputtered optical filters and coatings for applications that require the greatest precision in color separation, optical quality and signal purity. Their astronomical filters are used worldwide in research and amateur applications. They are as comfortable designing and manufacturing custom filters as they are for their catalog items.\u003c\/p\u003e\n\u003cp\u003eHighly precise and accurate, the passbands of these filters remain spectrally stable and do not drift in response to extreme temperature fluctuations or changes in humidity. All filters may be used with apertures of f\/4 or smaller. Chroma provides custom coating services for more demanding imaging applications requiring larger apertures such as f\/3 or f\/2. They also can provide larger sizes and unique passbands upon request.\u003c\/p\u003e\n\u003cp\u003eChroma manufactures the highest quality astronomy filters with durable, sputtered hard coatings using single substrates of the best glass, eliminating the need for laminations. All primary filter coatings are applied on the front surface and anti-reflection coatings on the rear surface to prevent ghosting and to maximize transmission.\u003c\/p\u003e\n\u003cp\u003eAll filters are manufactured in Vermont.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAdditional Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBlocks common spectral lines from lighting sources. This filter provides balanced color for the visible spectrum while blocking most emission from metal-halide and vapor lamp sources which together contribute to sky glow.\u003c\/li\u003e\n\u003cli\u003eExtremely durable coatings withstand humidity changes and extreme temperature fluxes and remain spectrally accurate\u003cbr\u003ein CWL and band pass adherence\u003c\/li\u003e\n\u003cli\u003eNo reflections leading to image distortions or “back reflections”\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eT: ≥ 94% avg. across visible passbands\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eBlocking ≥ OD1.4@ metal-halide and vapor lamp lines\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eDurable sputter coatings\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eParallelism: \u0026lt;30 arcsec\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThickness: 3.0 +\/-0.05mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eFilters designed for use with CCD and for f\/4.0 or slower\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eTransmitted wavefront better than 0.25 waves\/inch\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eIn the Box\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan\u003eChroma LoGlow Filter of the chosen size\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.chroma.com\/sites\/default\/files\/Astronomy-Brochure-2022.pdf\" data-mce-href=\"https:\/\/www.chroma.com\/sites\/default\/files\/Astronomy-Brochure-2022.pdf\" target=\"_blank\"\u003eChroma Astronomy Filters \u0026amp; Sets Brochure\u003c\/a\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eLifetime Warranty for Sputtered Catalog Filters\u003c\/p\u003e","brand":"Chroma","offers":[{"title":"1.25″ round mounted","offer_id":43652072734949,"sku":"CHR-27030-1.25","price":385.0,"currency_code":"CAD","in_stock":true},{"title":"2″ round mounted","offer_id":43652072767717,"sku":"CHR-27030-2","price":707.0,"currency_code":"CAD","in_stock":true},{"title":"31mm round unmounted","offer_id":43652072800485,"sku":"CHR-27030-31","price":385.0,"currency_code":"CAD","in_stock":true},{"title":"36mm round unmounted","offer_id":43652072833253,"sku":"CHR-27030-36","price":497.0,"currency_code":"CAD","in_stock":true},{"title":"50mm round unmounted","offer_id":43652072866021,"sku":"CHR-27030-50","price":637.0,"currency_code":"CAD","in_stock":true},{"title":"50mm x 50mm square unmounted","offer_id":43652072898789,"sku":"CHR-27030-50S","price":770.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/chroma-loglow-light-pollution-filter-astronomy-plus_aeb18fe3-18df-456e-bc22-5af94ab9f898.png?v=1690483381"},{"product_id":"chroma-clear-filter","title":"Chroma Clear Filter","description":"\u003ch2\u003eChroma Clear Filter\u003c\/h2\u003e\n\u003cp\u003eThe Chroma Clear Filter has an average transmission greater or equal to 97% across the 380-1000nm range.\u003c\/p\u003e\n\u003cp\u003eChroma Technology is an employee-owned company. They specialize in the design and manufacture of sputtered optical filters and coatings for applications that require the greatest precision in color separation, optical quality and signal purity. Their astronomical filters are used worldwide in research and amateur applications. They are as comfortable designing and manufacturing custom filters as they are for their catalog items.\u003c\/p\u003e\n\u003cp\u003eHighly precise and accurate, the passbands of these filters remain spectrally stable and do not drift in response to extreme temperature fluctuations or changes in humidity. All filters may be used with apertures of f\/4 or smaller. Chroma provides custom coating services for more demanding imaging applications requiring larger apertures such as f\/3 or f\/2. They also can provide larger sizes and unique passbands upon request.\u003c\/p\u003e\n\u003cp\u003eChroma manufactures the highest quality astronomy filters with durable, sputtered hard coatings using single substrates of the best glass, eliminating the need for laminations. All primary filter coatings are applied on the front surface and anti-reflection coatings on the rear surface to prevent ghosting and to maximize transmission.\u003c\/p\u003e\n\u003cp\u003eAll filters are manufactured in Vermont.\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eT: ≥ 97% avg., 94% min. 380-1000nm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eDurable sputter coatings\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eParallelism: \u0026lt;30 arcsec\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThickness: 3.0 +\/-0.05mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eFilters designed for use with CCD and for f\/4.0 or slower\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eTransmitted wavefront better than 0.25 waves\/inch\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eIn the Box\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan\u003eChroma Clear filter of the chosen size\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.chroma.com\/sites\/default\/files\/Astronomy-Brochure-2022.pdf\" target=\"_blank\" data-mce-href=\"https:\/\/www.chroma.com\/sites\/default\/files\/Astronomy-Brochure-2022.pdf\"\u003eChroma Astronomy Filters \u0026amp; Sets Brochure\u003c\/a\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eLifetime Warranty for Sputtered Catalog Filters\u003c\/p\u003e","brand":"Chroma","offers":[{"title":"1.25″ round mounted","offer_id":43651806626021,"sku":"CHR-27044-1.25","price":182.0,"currency_code":"CAD","in_stock":true},{"title":"2″ round mounted","offer_id":43651806658789,"sku":"CHR-27044-2","price":525.0,"currency_code":"CAD","in_stock":true},{"title":"31mm round unmounted","offer_id":43651806691557,"sku":"CHR-27044-31","price":182.0,"currency_code":"CAD","in_stock":true},{"title":"36mm round unmounted","offer_id":43651806757093,"sku":"CHR-27044-36","price":210.0,"currency_code":"CAD","in_stock":true},{"title":"50mm round unmounted","offer_id":43651806789861,"sku":"CHR-27044-50","price":455.0,"currency_code":"CAD","in_stock":true},{"title":"50mm x 50mm square unmounted","offer_id":43651806822629,"sku":"CHR-27044-50S","price":490.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/chroma-clear-filter-astronomy-plus_db188345-188e-4f1c-b394-e1d52af03d46.png?v=1690483381"},{"product_id":"baader-fringe-killer-filter","title":"Baader Fringe Killer Filter","description":"\u003ch2\u003eBaader Fringe Killer Filter\u003c\/h2\u003e\n\u003cp style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin-top: 0.9375rem; margin-bottom: 0.9375rem; color: #4c5154; font-family: 'Libre Franklin', sans-serif; font-size: 15px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\" data-mce-fragment=\"1\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin-top: 0.9375rem; margin-bottom: 0.9375rem; color: #4c5154; font-family: 'Libre Franklin', sans-serif; font-size: 15px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003eAchromat owners rejoice! Baader Planetarium has taken minus violet filtration to a new level. The Fringe Killer brings a type of filtration, never before seen, to the amateur. Rather than simply trimming the shorter wavelengths at a chosen wavelength and slope like all other minus violet filters, the Fringe Killer carefully attenuates a specific region of the spectrum. This allowed Baader to tune the filter for maximum practical reduction of the most damaging defocused blue wavelengths, with only a faint yellow color shift - without dimming and lowering image contrast by resorting to reduction of the important green-yellow wavelengths to crudely restore an apparent color balance! (where the eye is very sensitive, and where refractors are their sharpest) The result is a filter that removes the majority of color fringe, without affecting image brightness all, imparting strong coloration, or reducing contrast at important wavelengths. As any telescope owner knows, light is a valuable commodity for both planetary and deep sky viewing, and the fringe killer preserves every bit of light possible. Terrestrial observers will also find the qualities of this filter to be ideal for their needs.\u003c\/p\u003e\n\u003cp style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin-top: 0.9375rem; margin-bottom: 0.9375rem; color: #4c5154; font-family: 'Libre Franklin', sans-serif; font-size: 15px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\" data-mce-fragment=\"1\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin-top: 0.9375rem; margin-bottom: 0.9375rem; color: #4c5154; font-family: 'Libre Franklin', sans-serif; font-size: 15px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003eThe high quality of Baader Planetarium filters permits stacking with no image degradation. For an even less colored view, with noticeably boosted color contrasts, we highly recommend stacking a Moon \u0026amp; Skyglow filter with the Fringe Killer. These two filters compliment each other, and the result is an almost totally neutral view (no coloration). Image brightness is also very minimally affected, due to the optimized formula of the Moon \u0026amp; Skyglow, along with the superb anti reflection coatings.\u003c\/p\u003e\n\u003cp style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin-top: 0.9375rem; margin-bottom: 0.9375rem; color: #4c5154; font-family: 'Libre Franklin', sans-serif; font-size: 15px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\" data-mce-fragment=\"1\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin-top: 0.9375rem; margin-bottom: 0.9375rem; color: #4c5154; font-family: 'Libre Franklin', sans-serif; font-size: 15px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003eFor two recent user reviews of the Fringe Killer, please see Cloudy Nights at:\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/www.cloudynights.com\/accessories2\/fringe.htm\" style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); background-color: transparent; color: #0076de; text-decoration: none; transition: color 0.1s cubic-bezier(0.4, 0, 0.2, 1) 0s;\" data-mce-fragment=\"1\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); background-color: transparent; color: #0076de; text-decoration: none; transition: color 0.1s cubic-bezier(0.4, 0, 0.2, 1) 0s;\" data-mce-href=\"http:\/\/www.cloudynights.com\/accessories2\/fringe.htm\" target=\"_blank\"\u003ehttp:\/\/www.cloudynights.com\/accessories2\/fringe.htm\u003c\/a\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003eand Mike Swanson's NexStar Site at:\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/www.nexstarsite.com\/Reviews\/BaaderFringeKiller.htm\" style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); background-color: transparent; outline-width: 0px; color: #0066bf; text-decoration: none; transition: color 0.1s cubic-bezier(0.4, 0, 0.2, 1) 0s;\" data-mce-fragment=\"1\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); background-color: transparent; outline-width: 0px; color: #0066bf; text-decoration: none; transition: color 0.1s cubic-bezier(0.4, 0, 0.2, 1) 0s;\" data-mce-href=\"http:\/\/www.nexstarsite.com\/Reviews\/BaaderFringeKiller.htm\" target=\"_blank\"\u003ehttp:\/\/www.nexstarsite.com\/Reviews\/BaaderFringeKiller.htm\u003c\/a\u003e\u003c\/p\u003e\n\u003cp style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin-top: 0.9375rem; margin-bottom: 0.9375rem; color: #4c5154; font-family: 'Libre Franklin', sans-serif; font-size: 15px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\" data-mce-fragment=\"1\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin-top: 0.9375rem; margin-bottom: 0.9375rem; color: #4c5154; font-family: 'Libre Franklin', sans-serif; font-size: 15px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003eThe Fringe Killer is the perfect compliment to the Baader Contrast Booster. The Contrast Booster is an aggressive filter, designed to deliver the maximum sharpness and contrast possible from an achromat. The result is complete removal of the violet haze, with a somewhat dimmer and yellowier image. The Contrast Booster also incorporates additional RGB filtration for further enhancing color contrasts. The Fringe Killer provides a milder more natural filtration, that leaves fast achromats performing much like a classical f\/15 achromat. The Fringe Killer delivers what we feel is an ideal combination of improved resolution, contrast and unaltered image brightness, along with a very aesthetically pleasing view.\u003c\/p\u003e\n\u003cp style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin-top: 0.9375rem; margin-bottom: 0.9375rem; color: #4c5154; font-family: 'Libre Franklin', sans-serif; font-size: 15px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\" data-mce-fragment=\"1\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin-top: 0.9375rem; margin-bottom: 0.9375rem; color: #4c5154; font-family: 'Libre Franklin', sans-serif; font-size: 15px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003eThe coatings required to accomplish this innovative filtration are exceedingly complex, requiring almost 50 layers per side, using the latest DWDM Plasma assisted coating process. The Fringe Killer has perhaps the most complex coating ever achieved on an amateur astronomical filter Digital Imagers (CCD, DigiCam, and Webcam) will find the Fringe Killer to be the ultimate mate for their achromatic refractor. The high transmission and fringe reduction work great for both planetary and deep sky imaging. Baader has also chosen to include their renowned UV\/IR Cut coatings as part of the Fringe Killer formula. These coatings maintain very high transmission, with well placed sharp cutoffs in the IR and UV (see the UV\/IR Cut filter below, for more detail on these coatings).\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv class=\"centerImage\" data-mce-fragment=\"1\"\u003e\n\u003cdiv data-pdp-tab-content=\"description\" class=\"pdp-content-description rte active\" data-mce-fragment=\"1\"\u003e\n\u003ch2 style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-family: 'Libre Franklin', sans-serif; font-style: normal; font-weight: 600; letter-spacing: normal; text-transform: none; font-size: var(--font-size-heading-2); margin-top: 1.875rem; margin-bottom: 0.9375rem; color: #4c4c4c; font-variant-ligatures: normal; font-variant-caps: normal; orphans: 2; text-align: start; text-indent: 0px; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cb style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 900;\"\u003e1.25\"\u003c\/b\u003e\u003c\/h2\u003e\n\u003ctable style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid rgba(128, 128, 128, 0.16); box-shadow: rgba(128, 128, 128, 0.11) 0px 1px 4px; display: block; border-collapse: collapse; max-width: 100%; height: auto; overflow: auto; white-space: normal; background-color: #ffffff; width: 1499.53px; text-align: left; table-layout: fixed; color: #4c5154; font-family: 'Libre Franklin', sans-serif; font-size: 15px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\" id=\"product-attribute-specs-table\" class=\"data-table\"\u003e\n\u003ctbody style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\"\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\"\u003e\n\u003cth style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 302.266px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 302.266px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); background: #eeeeee;\"\u003e\n\u003cth style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 302.266px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 302.266px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"data\"\u003e2458370\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\"\u003e\n\u003cth style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 302.266px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 302.266px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"data\"\u003e4047825009494\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); background: #eeeeee;\"\u003e\n\u003cth style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 302.266px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"label\"\u003eWEIGHT (KG)\u003c\/th\u003e\n\u003ctd style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 302.266px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"data\"\u003e0.059\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\"\u003e\n\u003cth style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 302.266px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"label\"\u003eTRANSMISSION RANGE\u003c\/th\u003e\n\u003ctd style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 302.266px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"data\"\u003emultiple bands (see spectral image)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); background: #eeeeee;\"\u003e\n\u003cth style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 302.266px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"label\"\u003eFILTER THICKNESS (WITHOUT CELL)\u003c\/th\u003e\n\u003ctd style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 302.266px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"data\"\u003e2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\"\u003e\n\u003cth style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 302.266px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"label\"\u003eAR-COATING\u003c\/th\u003e\n\u003ctd style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 302.266px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"data\"\u003ePhantom Coating® Group, planeoptically polished\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); background: #eeeeee;\"\u003e\n\u003cth style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 302.266px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"label\"\u003eFILTER SIZE\u003c\/th\u003e\n\u003ctd style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 302.266px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"data\"\u003e1 25 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\"\u003e\n\u003cth style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 302.266px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"label\"\u003eFILTER USAGE\u003c\/th\u003e\n\u003ctd style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 302.266px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"data\"\u003eColor Correction, IR-Cut\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); background: #eeeeee;\"\u003e\n\u003cth style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 302.266px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"label\"\u003eFILTER MOUNTED\u003c\/th\u003e\n\u003ctd style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 302.266px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"data\"\u003eMounted (LPFC 6mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\"\u003e\n\u003cth style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 302.266px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"label\"\u003eTYPE OF FILTER\u003c\/th\u003e\n\u003ctd style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 302.266px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"data\"\u003eBandpass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); background: #eeeeee;\"\u003e\n\u003cth style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 302.266px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"label\"\u003eSINGLE OR SET?\u003c\/th\u003e\n\u003ctd style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 302.266px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"data\"\u003eSingle Filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\"\u003e\n\u003cth style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 302.266px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"label\"\u003eFILTER SHAPE\u003c\/th\u003e\n\u003ctd style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 302.266px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"data\"\u003eround\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2 style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-family: 'Libre Franklin', sans-serif; font-style: normal; font-weight: 600; letter-spacing: normal; text-transform: none; font-size: var(--font-size-heading-2); margin-top: 1.875rem; margin-bottom: 0.9375rem; color: #4c4c4c; font-variant-ligatures: normal; font-variant-caps: normal; orphans: 2; text-align: start; text-indent: 0px; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cb style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 900;\"\u003e2\"\u003c\/b\u003e\u003c\/h2\u003e\n\u003ctable style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid rgba(128, 128, 128, 0.16); box-shadow: rgba(128, 128, 128, 0.11) 0px 1px 4px; display: block; border-collapse: collapse; max-width: 100%; height: auto; overflow: auto; white-space: normal; background-color: #ffffff; width: 1499.53px; text-align: left; table-layout: fixed; color: #4c5154; font-family: 'Libre Franklin', sans-serif; font-size: 15px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\" id=\"product-attribute-specs-table\" class=\"data-table\"\u003e\n\u003ctbody style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\"\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\"\u003e\n\u003cth style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 302.266px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 302.266px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); background: #eeeeee;\"\u003e\n\u003cth style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 302.266px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 302.266px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"data\"\u003e2458375\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\"\u003e\n\u003cth style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 302.266px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"label\"\u003eWEIGHT (KG)\u003c\/th\u003e\n\u003ctd style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 302.266px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"data\"\u003e0.065\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); background: #eeeeee;\"\u003e\n\u003cth style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 302.266px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"label\"\u003eTRANSMISSION RANGE\u003c\/th\u003e\n\u003ctd style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 302.266px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"data\"\u003emultiple bands (see spectral image)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\"\u003e\n\u003cth style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 302.266px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"label\"\u003eFILTER THICKNESS (WITHOUT CELL)\u003c\/th\u003e\n\u003ctd style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 302.266px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"data\"\u003e2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); background: #eeeeee;\"\u003e\n\u003cth style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 302.266px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"label\"\u003eAR-COATING\u003c\/th\u003e\n\u003ctd style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 302.266px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"data\"\u003ePhantom Coating® Group, planeoptically polished\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\"\u003e\n\u003cth style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 302.266px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"label\"\u003eFILTER SIZE\u003c\/th\u003e\n\u003ctd style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 302.266px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"data\"\u003e2 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); background: #eeeeee;\"\u003e\n\u003cth style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 302.266px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"label\"\u003eFILTER USAGE\u003c\/th\u003e\n\u003ctd style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 302.266px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"data\"\u003eColor Correction, IR-Cut\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\"\u003e\n\u003cth style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 302.266px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"label\"\u003eFILTER MOUNTED\u003c\/th\u003e\n\u003ctd style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 302.266px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"data\"\u003eMounted (LPFC 6mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); background: #eeeeee;\"\u003e\n\u003cth style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 302.266px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"label\"\u003eTYPE OF FILTER\u003c\/th\u003e\n\u003ctd style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 302.266px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"data\"\u003eBandpass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\"\u003e\n\u003cth style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 302.266px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"label\"\u003eSINGLE OR SET?\u003c\/th\u003e\n\u003ctd style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 302.266px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"data\"\u003eSingle Filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); background: #eeeeee;\"\u003e\n\u003cth style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 302.266px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"label\"\u003eFILTER SHAPE\u003c\/th\u003e\n\u003ctd style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 302.266px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"data\"\u003eround\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 data-pdp-tab-content=\"description\" class=\"pdp-content-description rte active\" data-mce-fragment=\"1\"\u003eIn the Box\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv data-pdp-tab-content=\"description\" class=\"pdp-content-description rte active\" data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eBaader Fringe Killer Color Correction Filter\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003e2-Year Warrant\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cbr\u003e","brand":"Baader Planetarium","offers":[{"title":"1.25\"","offer_id":43541570617573,"sku":"BAA-FFK-1 (Baader #2458370)","price":134.0,"currency_code":"CAD","in_stock":true},{"title":"2\"","offer_id":43541570650341,"sku":"BAA-FFK-2 (Baader #2458375)","price":194.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/baader-fringe-killer-filter-astronomy-plus-1.webp?v=1690483588"},{"product_id":"baader-neodymium-moon-skyglow-filter","title":"Baader Neodymium (Moon \u0026 Skyglow) Filter","description":"\u003ch2\u003eBaader Neodymium (Moon \u0026amp; Skyglow) Filter\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSelective contrast filter, for all reflector and refractor telescopes\u003c\/li\u003e\n\u003cli\u003eFilters out specific wavelengths, especially those caused by streetlight and most importantly their scattered light which lightens up the night sky\u003c\/li\u003e\n\u003cli\u003eSelective blocking retains natural colors intact but with RGB significantly enhanced, resulting in greater color contrasts.\u003c\/li\u003e\n\u003cli\u003e95% transmission in the selected spectral range.\u003c\/li\u003e\n\u003cli\u003eFits all standard filter threads and can be combined with other filters – e.g. the planeoptically polished Baader planetary color filters. This way, you can see fine details better or combine several images with a monochrome camera to achieve color images.\u003c\/li\u003e\n\u003cli\u003eThe filter is also optimized for Astrophotography due to it‘s full UV\/IR-blocking coating. When used with DSLRs, stars will remain much tighter, because the unfocussed UV and IR parts of the spectrum are blocked out.\u003c\/li\u003e\n\u003cli\u003ePlaneoptically polished; can be used in front of a binoviewer or for afocal photography – far away from the focus without loosing sharpness!\u003c\/li\u003e\n\u003cli\u003eThe fine-optical polish and absence of wedge error in the glass ensure perfect sharpness when magnifying more than 200x - while the much cheaper “fire -polished” filter glasses destroy the optical wavefront at high mags\u003c\/li\u003e\n\u003cli\u003eNeodymium doped optical glass\u003c\/li\u003e\n\u003cli\u003eCoatings Front\/Back: 7-layer hard-BBAR-coating \/ 27-layered dielectrical UV\/IR-cut coating\u003c\/li\u003e\n\u003cli\u003eUltra-hard and durable Ion-beam hardened coatings – may be cleaned anytime without fear. Non-aging sealed coating edges.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr data-mce-fragment=\"1\"\u003eThe Baader Planetarium Moon \u0026amp; Skyglow (Neodymium) filter brings an entirely unique approach to planetary contrast enhancement and light pollution reduction. Based on earlier research at Carl Zeiss, Baader has developed a filter that uses Neodymium glass which filters out a few specific wavelengths from streetlights as well as skyglow from the Moon. The unique spectral characteristics of Neodymium also boost color contrasts by isolating the Red, Green, and Blue regions (so-called RGB enhancement). The result is a filter that leaves natural colors mostly intact, but significantly enhanced.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003ePlanetary and Lunar views are improved in all scopes, reflectors, refractors (APO or Achro). Jupiter's Great Red Spot and ruddy hues of the bands are noticeably enhanced, and contrast of Martian surface features boosted. The Background sky is darkened, and subtle details improved. The filter's high efficiency preserves image brightness, and many Galaxies, Nebulae and Globular Star Clusters are improved due to the reduction of skyglow from artificial lighting. For a hands-on review of the Moon \u0026amp; Skyglow Filter, visit the accessories review section at www.cloudynights.com.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eThe high quality of Baader Planetarium filters permits stacking with no image degradation. Achromat owners will find the combination of Moon \u0026amp; Skyglow and the new Fringe Killer filter to be ideal for planetary viewing. The high light throughput and natural coloration will make achromats perform more like an apochromat. An integrated version is also available, the Semi-APO filter.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eThe Moon \u0026amp; Skyglow is also optimized for imagers, due to its full IR-blocking (See the filter curve on the datasheet included in the link, below).\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eThe filter substrate is a special custom melt of Neodymium doped glass, designed for specific transmission characteristics, and made only for Baader Planetarium. In addition to it's unique spectral characteristics, unlike most filters, the Baader Moon \u0026amp; Skyglow surfaces are optically polished to deliver the best possible image sharpness and contrast.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eThe images below demonstrate the large contrast improvement on Mars. The image on the left was taken without filtration, while the image on the right was taken through a Moon \u0026amp; Skyglow. The Moon \u0026amp; Skyglow image shows significantly higher contrast and surface features barely visible without the filter. Both images were acquired identically, without any image processing or contrast enhancement, and give a very good idea of the planetary contrast improvement that is seen visually. The Moon \u0026amp; Skyglow never leaves our own telescopes when observing the planets and moon.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/Mars_MnS_Comparison_480x480.jpg?v=1585155736\"\u003e\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ch2 style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-family: 'Libre Franklin', sans-serif; font-style: normal; font-weight: 600; letter-spacing: normal; text-transform: none; font-size: var(--font-size-heading-2); margin-top: 1.875rem; margin-bottom: 0.9375rem; color: #4c4c4c; font-variant-ligatures: normal; font-variant-caps: normal; orphans: 2; text-indent: 0px; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; text-align: left;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-family: 'Libre Franklin', sans-serif; font-style: normal; font-weight: 600; letter-spacing: normal; text-transform: none; font-size: var(--font-size-heading-2); margin-top: 1.875rem; margin-bottom: 0.9375rem; color: #4c4c4c; font-variant-ligatures: normal; font-variant-caps: normal; orphans: 2; text-indent: 0px; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; text-align: left;\"\u003e1.25\"\u003c\/h2\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\" style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid rgba(128, 128, 128, 0.16); box-shadow: rgba(128, 128, 128, 0.11) 0px 1px 4px; display: block; border-collapse: collapse; max-width: 100%; height: auto; overflow: auto; white-space: normal; background-color: #ffffff; width: 1499.53px; text-align: left; table-layout: fixed; color: #4c5154; font-family: 'Libre Franklin', sans-serif; font-size: 15px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid rgba(128, 128, 128, 0.16); box-shadow: rgba(128, 128, 128, 0.11) 0px 1px 4px; display: block; border-collapse: collapse; max-width: 100%; height: auto; overflow: auto; white-space: normal; background-color: #ffffff; width: 1499.53px; text-align: left; table-layout: fixed; color: #4c5154; font-family: 'Libre Franklin', sans-serif; font-size: 15px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\n\u003ctbody style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\"\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\"\u003e\n\u003cth class=\"label\" style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\" style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); background: #eeeeee;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); background: #eeeeee;\"\u003e\n\u003cth class=\"label\" style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\" style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\"\u003e2458305A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\"\u003e\n\u003cth class=\"label\" style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\" style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\"\u003e4047825009753\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); background: #eeeeee;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); background: #eeeeee;\"\u003e\n\u003cth class=\"label\" style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\"\u003eWEIGHT (KG)\u003c\/th\u003e\n\u003ctd class=\"data\" style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\"\u003e0.059\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\"\u003e\n\u003cth class=\"label\" style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\"\u003eTRANSMISSION RANGE\u003c\/th\u003e\n\u003ctd class=\"data\" style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\"\u003emultiple bands (see spectral image)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); background: #eeeeee;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); background: #eeeeee;\"\u003e\n\u003cth class=\"label\" style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\"\u003eFILTER THICKNESS (WITHOUT CELL)\u003c\/th\u003e\n\u003ctd class=\"data\" style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\"\u003e1 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\"\u003e\n\u003cth class=\"label\" style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\"\u003eAR-COATING\u003c\/th\u003e\n\u003ctd class=\"data\" style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\"\u003ePhantom Coating® Group, planeoptically polished\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); background: #eeeeee;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); background: #eeeeee;\"\u003e\n\u003cth class=\"label\" style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\"\u003eFILTER SIZE\u003c\/th\u003e\n\u003ctd class=\"data\" style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\"\u003e1 25 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\"\u003e\n\u003cth class=\"label\" style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\"\u003eFILTER USAGE\u003c\/th\u003e\n\u003ctd class=\"data\" style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\"\u003eCCD, Contrast Enhancement, Color Correction, IR-Cut, Light Pollution Reduction, Lunar, Planetary\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); background: #eeeeee;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); background: #eeeeee;\"\u003e\n\u003cth class=\"label\" style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\"\u003eFILTER MOUNTED\u003c\/th\u003e\n\u003ctd class=\"data\" style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\"\u003eMounted (LPFC 6mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\"\u003e\n\u003cth class=\"label\" style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\"\u003eTYPE OF FILTER\u003c\/th\u003e\n\u003ctd class=\"data\" style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\"\u003eBandpass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); background: #eeeeee;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); background: #eeeeee;\"\u003e\n\u003cth class=\"label\" style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\"\u003eSINGLE OR SET?\u003c\/th\u003e\n\u003ctd class=\"data\" style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\"\u003eSingle Filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\"\u003e\n\u003cth class=\"label\" style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\"\u003eFILTER SHAPE\u003c\/th\u003e\n\u003ctd class=\"data\" style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\"\u003eround\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2 style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-family: 'Libre Franklin', sans-serif; font-style: normal; font-weight: 600; letter-spacing: normal; text-transform: none; font-size: var(--font-size-heading-2); margin-top: 1.875rem; margin-bottom: 0.9375rem; color: #4c4c4c; font-variant-ligatures: normal; font-variant-caps: normal; orphans: 2; text-indent: 0px; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; text-align: left;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-family: 'Libre Franklin', sans-serif; font-style: normal; font-weight: 600; letter-spacing: normal; text-transform: none; font-size: var(--font-size-heading-2); margin-top: 1.875rem; margin-bottom: 0.9375rem; color: #4c4c4c; font-variant-ligatures: normal; font-variant-caps: normal; orphans: 2; text-indent: 0px; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; text-align: left;\"\u003e2\"\u003c\/h2\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\" style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid rgba(128, 128, 128, 0.16); box-shadow: rgba(128, 128, 128, 0.11) 0px 1px 4px; display: block; border-collapse: collapse; max-width: 100%; height: auto; overflow: auto; white-space: normal; background-color: #ffffff; width: 1499.53px; text-align: left; table-layout: fixed; color: #4c5154; font-family: 'Libre Franklin', sans-serif; font-size: 15px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid rgba(128, 128, 128, 0.16); box-shadow: rgba(128, 128, 128, 0.11) 0px 1px 4px; display: block; border-collapse: collapse; max-width: 100%; height: auto; overflow: auto; white-space: normal; background-color: #ffffff; width: 1499.53px; text-align: left; table-layout: fixed; color: #4c5154; font-family: 'Libre Franklin', sans-serif; font-size: 15px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\n\u003ctbody style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\"\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\"\u003e\n\u003cth class=\"label\" style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\" style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); background: #eeeeee;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); background: #eeeeee;\"\u003e\n\u003cth class=\"label\" style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\" style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\"\u003e2458334A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\"\u003e\n\u003cth class=\"label\" style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\"\u003eWEIGHT (KG)\u003c\/th\u003e\n\u003ctd class=\"data\" style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\"\u003e0.062\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); background: #eeeeee;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); background: #eeeeee;\"\u003e\n\u003cth class=\"label\" style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\"\u003eTRANSMISSION RANGE\u003c\/th\u003e\n\u003ctd class=\"data\" style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\"\u003emultiple bands (see spectral image)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\"\u003e\n\u003cth class=\"label\" style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\"\u003eFILTER THICKNESS (WITHOUT CELL)\u003c\/th\u003e\n\u003ctd class=\"data\" style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\"\u003e1 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); background: #eeeeee;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); background: #eeeeee;\"\u003e\n\u003cth class=\"label\" style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\"\u003eAR-COATING\u003c\/th\u003e\n\u003ctd class=\"data\" style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\"\u003ePhantom Coating® Group, planeoptically polished\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\"\u003e\n\u003cth class=\"label\" style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\"\u003eFILTER SIZE\u003c\/th\u003e\n\u003ctd class=\"data\" style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\"\u003e2 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); background: #eeeeee;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); background: #eeeeee;\"\u003e\n\u003cth class=\"label\" style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\"\u003eFILTER USAGE\u003c\/th\u003e\n\u003ctd class=\"data\" style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\"\u003eCCD, Contrast Enhancement, Color Correction, IR-Cut, Light Pollution Reduction, Lunar, Planetary\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\"\u003e\n\u003cth class=\"label\" style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\"\u003eFILTER MOUNTED\u003c\/th\u003e\n\u003ctd class=\"data\" style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\"\u003eMounted (LPFC 6mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); background: #eeeeee;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); background: #eeeeee;\"\u003e\n\u003cth class=\"label\" style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\"\u003eTYPE OF FILTER\u003c\/th\u003e\n\u003ctd class=\"data\" style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\"\u003eBandpass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\"\u003e\n\u003cth class=\"label\" style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\"\u003eSINGLE OR SET?\u003c\/th\u003e\n\u003ctd class=\"data\" style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\"\u003eSingle Filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); background: #eeeeee;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); background: #eeeeee;\"\u003e\n\u003cth class=\"label\" style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\"\u003eFILTER SHAPE\u003c\/th\u003e\n\u003ctd class=\"data\" style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" data-mce-style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 590.859px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\"\u003eround\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eIn the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBaader Planetarium 1.25\"\/2\" Moon \u0026amp; Skyglow Filter\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBaader stackable filter box\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"centerImage\" data-mce-fragment=\"1\"\u003e\n\u003cdiv class=\"pdp-content-description rte active\" data-pdp-tab-content=\"description\" data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003e2-Year Warranty\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Baader Planetarium","offers":[{"title":"1.25\"","offer_id":43566045528293,"sku":"BAA-FMS-1 (Baader #2458305A)","price":130.0,"currency_code":"CAD","in_stock":true},{"title":"2\"","offer_id":43566045561061,"sku":"BAA-FMS-2 (Baader #2458334A)","price":213.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/baader-neodymium-moon-and-skyglow-filter-astronomy-plus-1.webp?v=1690483602"},{"product_id":"baader-contrast-booster-filter","title":"Baader Contrast Booster Filter","description":"\u003ch2\u003eBaader Contrast Booster Filter\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eEliminates the color error of economy refractors.\u003c\/li\u003e\n\u003cli\u003eClearly puts the real quality of the lens on display.\u003c\/li\u003e\n\u003cli\u003eRemoves the bluish \"hue\" (=lack of contrast) during lunar-, planetary-, solar- and terrestrial observation.\u003c\/li\u003e\n\u003cli\u003eStrongly emphasizes surface detail on Jupiter and Mars. If you have never seen the GRS (Great Red Spot) on Jupiter – with this filter you will.\u003c\/li\u003e\n\u003cli\u003eOver 95 % transmission – provides a bright, brilliant image compared to the usual dark green colour filters, used to bring out detail on Jupiter. Color definition is retained.\u003c\/li\u003e\n\u003cli\u003eThe ultimate in lunar filters. Moon (and Sun) appear much more natural in color (with a slight yellowish tint), compared to the usual low priced dark green Moon-filters, usually offered for beginners telescopes.\u003c\/li\u003e\n\u003cli\u003eCompletely removes distracting false color and the resulting smeared and washed out image details. You have never ever seen the Moon or the Sun (with AstroSolar Safety Film) so tack sharp in an economy achromatic telescope.\u003c\/li\u003e\n\u003cli\u003eBlocks atmospheric \"stray light\" (skyglow). Sky background turns into pitch black.\u003c\/li\u003e\n\u003cli\u003eFits into 1¼\" and 2\" standard filter threads. Planeoptically polished, suitable for being used in front of a binocular viewer, or for a-focal image projection during digital imaging (way in front of the focal plane).\u003c\/li\u003e\n\u003cli\u003eNo deterioration of resolution with magnifications of 200x and more – as with \"raw polished\" (flame polished) glass.\u003c\/li\u003e\n\u003cli\u003eSubstrate (glass melt) Neodymium doped glass.\u003c\/li\u003e\n\u003cli\u003eCoating \/ rear face: 7-layer hard-multicoating, featuring 0.25% reflection.\u003c\/li\u003e\n\u003cli\u003eCoating \/ front face: 23-layer dielectric long pass blocker.\u003c\/li\u003e\n\u003cli\u003eIonbeam hardened coatings on both faces, absolutely scratch resistant – may be cleaned any time without fear. Non-aging sealed coating edges\u003c\/li\u003e\n\u003cli\u003eA significant part of city light pollution, as well as atmospheric Airglow is removed from the telescopic image.\u003c\/li\u003e\n\u003c\/ul\u003e\nMuch more than a simple minus-violet filter. Based on the popular Baader Moon \u0026amp; Skyglow filter, the Baader Contrast-Booster takes contrast enhancement and skyglow reduction to the maximum level possible from a filter. Not only does this filter deliver a significant enhancement of planetary and lunar contrasts, but it is designed to also totally eliminate the damaging blue defocused haze present in achromatic refractors. Gone are the annoying blue halo and obscuring haze that surround and smear resolution and contrast. Subtle contrasts and colors are boosted, while displaying the full resolution your scope is capable of.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eThe Contrast-Booster combines a special proprietary melt of Neodymium glass with a carefully designed 23 layer dielectric long-pass blocker on one face, and a 7-layer ultra-low antireflection coating on the other face. By aggressively filtering out the defocused blue wavelengths, a light yellow tint is imparted to objects (noticeably less than a typical yellow filter). The special coatings enable over 95% transmission across key portions of the visible spectrum (including H-Alpha). This results in a filter that retains the colors and color contrasts in tough subjects like Jupiter, without excessive image dimming. Cloud bands retain their ruddy red hues, but now become more striking in contrast. The Great Red Spot finally becomes easier. Planets and Lunarscapes are set against a jet black sky. The Contrast-Booster is a must for Solar observing (with Baader Astro Solar).\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eAs many users have found, this is a great filter for Mars! The views of Mars with all telescopes (including reflectors and apochromats) benefit from the RGB filtration plus blue blocking.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eCombined with the Baader UV-IR-Cut Filter, the Contrast-Booster makes the ideal filter set for digital imaging. Rather than add the cost of additional IR filtration (only needed for digital imaging), the Baader Contrast Booster has been optimized for visual use. Digital imagers can simply add our Baader UV-IR-Cut Filter when needed. The true 1\/4 wave fineoptically polished surfaces guarantee the sharpness and contrast of the image. Filters are available in both 1¼” and 2\" sizes. The base substrate is a special custom melt of Neodymium doped glass, designed for specific transmission characteristics, and made only for Baader Planetarium. In addition to it's unique spectral characteristics, the Contrast-Booster offers Baader's hallmark optical and mechanical features that set it apart and result in the best possible image sharpness, contrast, and real-world durability;\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\"The contrast booster filter certainly removes the violet glow from my 6\" f\/8 refractor both on the bright stars and the moon. It does give a \"warm\" yellow tint to both. I soon got used to this when observing the moon and it posed no problem. I tried it on Mars. Unfortunately I am too far north(+53deg) to escape the worst effects of the earths atmosphere and seeing varied from fair to terrible. Still, it did make the dark markings more clearly visible. The quality of the glass is superb. Some other filters I have used cause a softening of the detail; not so with the Baader. All in all a very worthwhile addition to my observing tools; and at a great price too.\" \u003cem\u003ePat Abbott\u003c\/em\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\"Just wanted to let you know that the Baader Contrast Booster Filter is a GREAT product. Far and away the single best filter that I have used on Mars. I'm looking forward to Jupiter and Saturn. It also really helped with my webcam imaging of Mars.\" \u003cem\u003e\u003cspan style=\"text-decoration: underline;\"\u003eGordon Dayton\u003c\/span\u003e\u003c\/em\u003e\u003cbr\u003e\n\u003cdiv data-pdp-tab-content=\"description\" class=\"pdp-content-description rte active\"\u003e\n\u003ch3 data-pdp-tab-content=\"description\" class=\"pdp-content-description rte active\"\u003e\u003c\/h3\u003e\n\u003ch3 data-pdp-tab-content=\"description\" class=\"pdp-content-description rte active\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ch2 style=\"box-sizing: inherit; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-weight: 600; letter-spacing: normal; text-transform: none; font-size: var(--font-size-heading-2); margin-top: 1.875rem; margin-bottom: 0.9375rem; color: #4c4c4c; font-variant-ligatures: normal; font-variant-caps: normal; text-align: start; text-indent: 0px; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px;\"\u003e1.25\"\u003c\/h2\u003e\n\u003ctable style=\"box-sizing: inherit; border: 1px solid rgba(128, 128, 128, 0.16); box-shadow: rgba(128, 128, 128, 0.11) 0px 1px 4px; display: block; border-collapse: collapse; max-width: 100%; height: auto; overflow: auto; white-space: normal; background-color: #ffffff; width: 1499.53px; text-align: left; table-layout: fixed; color: #4c5154; font-family: 'Libre Franklin', sans-serif; font-size: 15px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-transform: none; word-spacing: 0px; -webkit-text-stroke-width: 0px;\" id=\"product-attribute-specs-table\" class=\"data-table\"\u003e\n\u003ctbody style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\"\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\"\u003e\n\u003cth style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 360.703px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 360.703px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); background: #eeeeee;\"\u003e\n\u003cth style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 360.703px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 360.703px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"data\"\u003e2458360\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\"\u003e\n\u003cth style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 360.703px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 360.703px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"data\"\u003e4047825009517\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); background: #eeeeee;\"\u003e\n\u003cth style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 360.703px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"label\"\u003eWEIGHT (KG)\u003c\/th\u003e\n\u003ctd style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 360.703px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"data\"\u003e0.059\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\"\u003e\n\u003cth style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 360.703px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"label\"\u003eTRANSMISSION RANGE\u003c\/th\u003e\n\u003ctd style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 360.703px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"data\"\u003emultiple bands (see spectral image)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); background: #eeeeee;\"\u003e\n\u003cth style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 360.703px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"label\"\u003eFILTER THICKNESS (WITHOUT CELL)\u003c\/th\u003e\n\u003ctd style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 360.703px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"data\"\u003e1 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\"\u003e\n\u003cth style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 360.703px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"label\"\u003eAR-COATING\u003c\/th\u003e\n\u003ctd style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 360.703px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"data\"\u003ePhantom Coating® Group, planeoptically polished\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); background: #eeeeee;\"\u003e\n\u003cth style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 360.703px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"label\"\u003eFILTER SIZE\u003c\/th\u003e\n\u003ctd style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 360.703px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"data\"\u003e1 25 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\"\u003e\n\u003cth style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 360.703px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"label\"\u003eFILTER USAGE\u003c\/th\u003e\n\u003ctd style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 360.703px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"data\"\u003eContrast Enhancement, Color Correction, IR-Cut, Planetary\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); background: #eeeeee;\"\u003e\n\u003cth style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 360.703px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"label\"\u003eFILTER MOUNTED\u003c\/th\u003e\n\u003ctd style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 360.703px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"data\"\u003eMounted (LPFC 6mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\"\u003e\n\u003cth style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 360.703px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"label\"\u003eTYPE OF FILTER\u003c\/th\u003e\n\u003ctd style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 360.703px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"data\"\u003eBandpass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); background: #eeeeee;\"\u003e\n\u003cth style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 360.703px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"label\"\u003eSINGLE OR SET?\u003c\/th\u003e\n\u003ctd style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 360.703px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"data\"\u003eSingle Filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\"\u003e\n\u003cth style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 360.703px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"label\"\u003eFILTER SHAPE\u003c\/th\u003e\n\u003ctd style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 360.703px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"data\"\u003eround\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2 style=\"box-sizing: inherit; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-weight: 600; letter-spacing: normal; text-transform: none; font-size: var(--font-size-heading-2); margin-top: 1.875rem; margin-bottom: 0.9375rem; color: #4c4c4c; font-variant-ligatures: normal; font-variant-caps: normal; text-align: start; text-indent: 0px; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px;\"\u003e2\"\u003c\/h2\u003e\n\u003ctable style=\"box-sizing: inherit; border: 1px solid rgba(128, 128, 128, 0.16); box-shadow: rgba(128, 128, 128, 0.11) 0px 1px 4px; display: block; border-collapse: collapse; max-width: 100%; height: auto; overflow: auto; white-space: normal; background-color: #ffffff; width: 1499.53px; text-align: left; table-layout: fixed; color: #4c5154; font-family: 'Libre Franklin', sans-serif; font-size: 15px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-transform: none; word-spacing: 0px; -webkit-text-stroke-width: 0px;\" id=\"product-attribute-specs-table\" class=\"data-table\"\u003e\n\u003ctbody style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\"\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\"\u003e\n\u003cth style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 360.703px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 360.703px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); background: #eeeeee;\"\u003e\n\u003cth style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 360.703px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 360.703px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"data\"\u003e2458365\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\"\u003e\n\u003cth style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 360.703px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 360.703px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"data\"\u003e4047825009500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); background: #eeeeee;\"\u003e\n\u003cth style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 360.703px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"label\"\u003eWEIGHT (KG)\u003c\/th\u003e\n\u003ctd style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 360.703px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"data\"\u003e0.067\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\"\u003e\n\u003cth style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 360.703px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"label\"\u003eTRANSMISSION RANGE\u003c\/th\u003e\n\u003ctd style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 360.703px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"data\"\u003emultiple bands (see spectral image)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); background: #eeeeee;\"\u003e\n\u003cth style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 360.703px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"label\"\u003eFILTER THICKNESS (WITHOUT CELL)\u003c\/th\u003e\n\u003ctd style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 360.703px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"data\"\u003e1 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\"\u003e\n\u003cth style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 360.703px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"label\"\u003eAR-COATING\u003c\/th\u003e\n\u003ctd style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 360.703px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"data\"\u003ePhantom Coating® Group, planeoptically polished\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); background: #eeeeee;\"\u003e\n\u003cth style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 360.703px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"label\"\u003eFILTER SIZE\u003c\/th\u003e\n\u003ctd style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 360.703px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"data\"\u003e2 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\"\u003e\n\u003cth style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 360.703px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"label\"\u003eFILTER USAGE\u003c\/th\u003e\n\u003ctd style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 360.703px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"data\"\u003eContrast Enhancement, Color Correction, IR-Cut, Planetary\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); background: #eeeeee;\"\u003e\n\u003cth style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 360.703px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"label\"\u003eFILTER MOUNTED\u003c\/th\u003e\n\u003ctd style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 360.703px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"data\"\u003eMounted (LPFC 6mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\"\u003e\n\u003cth style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 360.703px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"label\"\u003eTYPE OF FILTER\u003c\/th\u003e\n\u003ctd style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 360.703px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"data\"\u003eBandpass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); background: #eeeeee;\"\u003e\n\u003cth style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 360.703px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"label\"\u003eSINGLE OR SET?\u003c\/th\u003e\n\u003ctd style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 360.703px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"data\"\u003eSingle Filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\"\u003e\n\u003cth style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); font-weight: 600; border: 1px solid #aaaaaa; font-family: 'Libre Franklin', sans-serif; font-style: normal; font-size: var(--font-size-body); padding: 2px; text-align: left; color: #4c4c4c; width: 360.703px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"label\"\u003eFILTER SHAPE\u003c\/th\u003e\n\u003ctd style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); border: 1px solid #aaaaaa; font-size: 13px; padding: 2px; width: 360.703px; overflow-wrap: break-word; margin-left: auto; margin-right: auto;\" class=\"data\"\u003eround\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 data-pdp-tab-content=\"description\" class=\"pdp-content-description rte active\"\u003e\u003c\/h3\u003e\n\u003ch3 data-pdp-tab-content=\"description\" class=\"pdp-content-description rte active\"\u003eIn the Box\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv data-pdp-tab-content=\"description\" class=\"pdp-content-description rte active\"\u003e\n\u003cul\u003e\n\u003cli\u003eBaader Contrast Booster Filter\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003e2-Year Warranty\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Baader Planetarium","offers":[{"title":"1.25\"","offer_id":43540822360293,"sku":"BAA-FCNBST-1 (Baader #2458360)","price":130.0,"currency_code":"CAD","in_stock":true},{"title":"2\"","offer_id":43540822393061,"sku":"BAA-FCNBST-2 (Baader #2458365)","price":209.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/baader-contrast-booster-filter-astronomy-plus-1.webp?v=1690483626"},{"product_id":"astronomik-uhc-filter","title":"Astronomik UHC Filter","description":"\u003ch2\u003eAstronomik UHC Filter\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eThe Astronomik UHC filter stands out as the first choice for astrophotography of emission nebulae, offering enhanced contrast and detail that surpasses other filters on the market.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWith its \u003cstrong\u003eUltra High Contrast\u003c\/strong\u003e (\u003cstrong\u003eUHC\u003c\/strong\u003e) design, the Astronomik UHC filter allows nearly 100% transmission of H-alpha, H-beta and both OIII lines, effectively eliminating scattered light from various sources, including light pollution. This results in a significant enhancement of detail for gaseous and planetary nebulae against the sky background.\u003c\/p\u003e\n\u003cp\u003eDesigned for versatility, the Astronomik UHC filter is effective in both urban and dark sky conditions, improving contrast for emission nebulae. It dramatically increases the visibility and detail of objects that are otherwise faint or obscured.\u003c\/p\u003e\n\u003cp\u003eThe filter’s application spans aperture ratios from 1:3 to 1:15, suitable for a wide range of telescopes and lenses. Compared to filters from other manufacturers, the Astronomik UHC filter excels in revealing more stars and finer details in celestial objects, maintaining the sharpness and optical quality expected from high-performance lenses.\u003c\/p\u003e\n\u003cp\u003eThe filter works by blocking the whole optical spectrum, but allowing H-alpha, H-beta and both OIII lines to pass through. This highly selective transmission enhances the contrast between the sky background and objects.\u003c\/p\u003e\n\u003ch2\u003eOther uses\u003c\/h2\u003e\n\u003cp\u003eThe 1.25\"- and 2\"-cell models can be used for visual observations as well.\u003c\/p\u003e\n\u003ch2\u003eAlternatives\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eThe Astronomik UHC-E filter is more suitable for photographing comets or when there is less light pollution.\u003c\/li\u003e\n\u003cli\u003eWe recommend the Astronomik CLS or CLS CCD filter for photographing galaxies and the milky way in moderate light pollution. The Astronomik CLS CCD filter has an additional integrated infrared(IR)-blocking layer.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSuitability of the Astronomik UHC filters\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDSLR photography (astro-modified)\u003c\/strong\u003e: Very good for emission nebulae, color balance is also good\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDSLR photography (MC-modified)\u003c\/strong\u003e: Very good for emission nebulae, requires an additional Astronomik IR-Block filter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDSLR photography (original)\u003c\/strong\u003e: Good for emission nebulae, color balance is shifted but contrast is enhanced\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCMOS and CCD photography\u003c\/strong\u003e: Good for emission nebulae, requires an additional Astronomik IR-Block filter\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eClip-Filters for mirrorless Canon EOS R APS-C cameras\u003c\/h2\u003e\n\u003cp\u003eCanon EOS R APS-C series cameras are an excellent choice for astrophotography. With Astronomik Clip-Filters, you can use our full range of filters with your camera to capture stunning images. Whether paired with a camera lens or a telescope, our clip filters ensure maximum image quality and performance from your setup.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Astronomik Clip-Filters offer a number of practical advantages that make them an ideal choice for astrophotographers:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInstalling and removing the Astronomik Clip-Filter is very quick and easy and requires no extra tools or modifications to the camera body. They can be changed at any time, even at night.\u003c\/li\u003e\n\u003cli\u003eAll lens functions, such as focus, aperture, and image stabilization remain fully functional.\u003c\/li\u003e\n\u003cli\u003eThe Astronomik Clip-Filters are held securely in place without stressing the high-quality glass.\u003c\/li\u003e\n\u003cli\u003eThe Astronomik Clip-Filters are designed and optimized for use with both standard camera lenses and telescopes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eThrough the Astronomik Clip-Filters, we were able to solve several common issues faced by astrophotographers:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLarge filters for large camera lenses are very expensive.\u003c\/li\u003e\n\u003cli\u003eUsing a filter holder between the camera body and the lens prevents focusing to infinity.\u003c\/li\u003e\n\u003cli\u003eFor very fast telescopes (low f-number) like the Vixen R200SS or the Takahashi “Epsilon” astrograph, a filter drawer or filter wheel can not be used because the distance to the corrector lenses would be changed.\u003c\/li\u003e\n\u003cli\u003eLong exposure times lead to dust settling on the camera’s sensor chip.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAdditionally, all Astronomik EOS R APS-C Clip-Filters serve as an excellent dust shield, protecting the sensor during long exposures. If you only need a dust shield without filtering effects, the Astronomik MC-Clear EOS R APS-C Clip-Filter is the right choice.\u003c\/p\u003e\n\u003cp\u003eUse Astronomik filters for your Canon EOS R APS-C camera and enjoy marvelous images with an ultra-light equipment!\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #b13b3c;\"\u003eNOTE: Please store the Clip-Filter in the supplied storage box and do not leave it in the camera permanently.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eCompatible Canon EOS R APS-C cameras\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left;\"\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth style=\"text-align: center;\"\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: left;\"\u003eCanon EOS R7\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/www.astronomik.com\/media\/c5\/79\/36\/1775813946\/Haken.svg?ts=1775813946\" style=\"width: 23px; height: 18px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: left;\"\u003eCanon EOS R10\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/www.astronomik.com\/media\/c5\/79\/36\/1775813946\/Haken.svg?ts=1775813946\" style=\"width: 23px; height: 18px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: left;\"\u003eCanon EOS R50\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/www.astronomik.com\/media\/c5\/79\/36\/1775813946\/Haken.svg?ts=1775813946\" style=\"width: 23px; height: 18px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: left;\"\u003eCanon EOS R50 V\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/www.astronomik.com\/media\/c5\/79\/36\/1775813946\/Haken.svg?ts=1775813946\" style=\"width: 23px; height: 18px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: left;\"\u003eCanon EOS R100\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/www.astronomik.com\/media\/c5\/79\/36\/1775813946\/Haken.svg?ts=1775813946\" style=\"width: 23px; height: 18px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eNon-compatible Canon lenses\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left;\"\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth style=\"text-align: center;\"\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: left;\"\u003eCanon RF 14mm f\/1.4 L VCM\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/www.astronomik.com\/media\/9e\/75\/05\/1775813946\/Kreuz.svg?ts=1775813946\" style=\"width: 18px; height: 18px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: left;\"\u003eCanon RF 28mm F2.8 STM\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/www.astronomik.com\/media\/9e\/75\/05\/1775813946\/Kreuz.svg?ts=1775813946\" style=\"width: 18px; height: 18px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: left;\"\u003eCanon RF 35mm F1.8 IS Macro STM\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/www.astronomik.com\/media\/9e\/75\/05\/1775813946\/Kreuz.svg?ts=1775813946\" style=\"width: 18px; height: 18px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: left;\"\u003eCanon RF 85mm F1.2L USM\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/www.astronomik.com\/media\/9e\/75\/05\/1775813946\/Kreuz.svg?ts=1775813946\" style=\"width: 18px; height: 18px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: left;\"\u003eCanon Extender RF 2x\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/www.astronomik.com\/media\/9e\/75\/05\/1775813946\/Kreuz.svg?ts=1775813946\" style=\"width: 18px; height: 18px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: left;\"\u003eCanon Extender RF 1.4x\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/www.astronomik.com\/media\/9e\/75\/05\/1775813946\/Kreuz.svg?ts=1775813946\" style=\"width: 18px; height: 18px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eAstronomik filters are diffraction-limited, ensuring that the optical performance (resolution and contrast) of your telescope is not compromised. Thanks to the high-precision machining of the glas substrate, all Astronomik filters are parfocal. The wedge errors are far below all common tolerances. Therefore, all issues concerning focal distances and the exact alignment of images from each color channel are effectively eliminated.\u003c\/p\u003e\n\u003cp\u003eAll Astronomik filters are ideal for modern cameras, including both CMOS- and CCD-based models, ensuring you capture the best possible images with your equipment. Sharpness, contrast, and the absence of any reflections and halos are guaranteed. Even with bright stars in the field of view, nebulae and galaxies will be captured with the finest structures. The Astronomik MFR and MaxFR coatings are designed for optimal performance across a wide range of focal ratios of the optics used.\u003c\/p\u003e\n\u003cp\u003eEvery Astronomik filter undergoes a rigorous quality control process before delivery. Additionally, each Astronomik Narrowband-Emissionline filter is measured using a high-end PerkinElmer Spectrophotometer to ensure it meets the specifications published on our website. On the back of each Narrowband-Emissionline filter box, you will find a label detailing the precise spectral data for that specific filter, including the maximum transmission and the recommended range of focal ratios for best performance of that specific filter.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTypical transmission of 95% at 486nm (H-beta)\u003c\/li\u003e\n\u003cli\u003eTypical transmission of 95% at 496nm and 501nm (OIII)\u003c\/li\u003e\n\u003cli\u003eTypical transmission of 95% at 656nm (H alpha)\u003c\/li\u003e\n\u003cli\u003eTransmission range: 480nm to 505nm and above 645nm \u003c\/li\u003e\n\u003cli\u003eFull-Width-Half Maximum (FWHM): 25nm\u003c\/li\u003e\n\u003cli\u003eGlass thickness: 1mm (except Astronomik OWB Type 3 and XT filters)\u003c\/li\u003e\n\u003cli\u003eFinely polished optical glass, free of any striae, residual stresses, and bubbles\u003c\/li\u003e\n\u003cli\u003eExtremely scratch-resistant and durable coating\u003c\/li\u003e\n\u003cli\u003eCompletely resistant against high humidity and aging effects\u003c\/li\u003e\n\u003cli\u003eParfocal with other Astronomik filters\u003c\/li\u003e\n\u003cli\u003eDiffraction-limited\u003c\/li\u003e\n\u003cli\u003eOptimized spectral windows\u003c\/li\u003e\n\u003cli\u003eDelivered in a high-quality, long-lasting filter box\u003c\/li\u003e\n\u003cli\u003eMade in Germany\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSelected frame size Astronomik UHC Filter\u003c\/li\u003e\n\u003cli\u003ePlastic Storage Case\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 role=\"tabpanel\" aria-hidden=\"false\" aria-labelledby=\"tab-title-3\" data-content=\"tab-3\" class=\"tab__content tab.box tab__content--active\"\u003e\n\u003cspan\u003eManual \u0026amp; Warranty\u003c\/span\u003e\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.astronomik.com\/en\/warranty-garantie.html\"\u003eAstronomik\u003cspan\u003e \u003c\/span\u003e\u003c\/a\u003e10 year warranty\u003c\/p\u003e","brand":"Astronomik","offers":[{"title":"1.25\" (M28.5)","offer_id":44131835642085,"sku":"AK-8h0011","price":135.0,"currency_code":"CAD","in_stock":true},{"title":"2\" (M48)","offer_id":44131835674853,"sku":"AK-8h0012","price":271.0,"currency_code":"CAD","in_stock":true},{"title":"Clip-Filter EOS APS-C","offer_id":44131835707621,"sku":"AK-8h00ie","price":189.0,"currency_code":"CAD","in_stock":true},{"title":"XT Clip-Filter EOS APS-C","offer_id":44131835740389,"sku":"AK-8h00kr","price":216.0,"currency_code":"CAD","in_stock":true},{"title":"Clip-Filter EOS XL","offer_id":44131835773157,"sku":"AK-8h00ls","price":298.0,"currency_code":"CAD","in_stock":true},{"title":"Clip-Filter EOS R XL","offer_id":44131835805925,"sku":"AK-8h11g5","price":325.0,"currency_code":"CAD","in_stock":true},{"title":"Clip-Filter EOS R APS-C","offer_id":48895427969253,"sku":"AK-8h11uz","price":230.0,"currency_code":"CAD","in_stock":true},{"title":"Clip-Filter EOS M","offer_id":44131835838693,"sku":"AK-8h00r8","price":216.0,"currency_code":"CAD","in_stock":true},{"title":"Clip-Filter Sony alpha 7","offer_id":44131835871461,"sku":"AK-8h00xc","price":325.0,"currency_code":"CAD","in_stock":true},{"title":"Clip-Filter Nikon XL","offer_id":44131835904229,"sku":"AK-8h11au","price":325.0,"currency_code":"CAD","in_stock":true},{"title":"Clip-Filter Nikon Z XL","offer_id":44131835936997,"sku":"AK-8h11kv","price":325.0,"currency_code":"CAD","in_stock":true},{"title":"Clip-Filter Pentax K-1","offer_id":44131835969765,"sku":"AK-8h11ei","price":325.0,"currency_code":"CAD","in_stock":true},{"title":"UHC T-Mount (M42x0.75)","offer_id":44131836002533,"sku":"AK-8h00iw","price":244.0,"currency_code":"CAD","in_stock":true},{"title":"SC Rear Cell (2\" \/ 24TPI)","offer_id":44131836035301,"sku":"AK-8h00hz","price":312.0,"currency_code":"CAD","in_stock":true},{"title":"31mm","offer_id":44131836068069,"sku":"AK-8h00i0","price":162.0,"currency_code":"CAD","in_stock":true},{"title":"36mm","offer_id":44131836100837,"sku":"AK-8h00i1","price":189.0,"currency_code":"CAD","in_stock":true},{"title":"50mm","offer_id":44131836133605,"sku":"AK-8h00a0","price":285.0,"currency_code":"CAD","in_stock":true},{"title":"M49","offer_id":44131836166373,"sku":"AK-8h11jm","price":312.0,"currency_code":"CAD","in_stock":true},{"title":"M52","offer_id":44131836199141,"sku":"AK-8h11a6","price":312.0,"currency_code":"CAD","in_stock":true},{"title":"50 x 50mm² unmounted","offer_id":44131836231909,"sku":"AK-8h00bs","price":325.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/astronomik-uhc-filter-astronomy-plus-1.jpg?v=1690483639"},{"product_id":"lunt-1-25-white-light-solar-wedge-ls1-25hw","title":"Lunt White Light Solar Wedge","description":"\u003ch2\u003eLunt White Light Solar Wedge\u003c\/h2\u003e\n\u003cp\u003eFor solar white light imaging and white light visual observing. The Lunt White Light Wedges come with a built in ND3 filter. Notably, this allows perfectly safe imaging or visual observing of the Sun. Alternatively, if you wish to do visual observing we recommend dimming the image for your eyes with a Polarizing Filter. First put one Polarizing Filter on the bottom of your eyepiece. Then adjust the brightness to your comfort by rotating the eyepiece.\u003cbr\u003e\u003cbr\u003eWe offer 2 sizes of White Light Wedges. The 2” version allows for 2” eyepieces and has a 2” barrel for the focuser, and the 1.25” version allows for 1.25” eyepieces and has a 1.25” barrel. The 2″ model performs best on refractors with apertures of 6” or less. The 1.25″ model performs best on refractors up to 4″ in aperture. As long as you can reach focus for imaging with a standard star diagonal on your night time telescope, you will be able to reach focus when imaging with Lunt White Light Solar Wedges.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eView or image the Sun in white light with a Lunt Solar Wedge! This diagonal-type solar filter inserts into the focuser of your nighttime telescope for safe viewing of eclipses, sun spots, and more.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eAvailable in either a 2″ or 1.25″ model. 1.25″ is best for refractors 4″ and under, and the 2″ is best for refractors 6″ and under.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eThe addition of a polarizing filter (sold separately) is recommended when using the solar wedge visually.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eIn the Box\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli\u003eLunt White Light Solar Wedge (1.25″ or 2″, depending on what you choose)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eND3 Pre-installed Filter\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCarrying Case\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDie Cut Foam with room for accessories\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003eLunt 5-Year Warranty\u003c\/p\u003e","brand":"Lunt","offers":[{"title":"1.25\" White Light Solar Wedge","offer_id":43693199130853,"sku":"LS-LS1.25HW","price":385.0,"currency_code":"CAD","in_stock":true},{"title":"2\" White Light Solar Wedge","offer_id":43693199163621,"sku":"LS-LS2HW","price":525.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/lunt-white-light-solar-wedge-astronomy-plus-1.webp?v=1690483736"},{"product_id":"lunt-2-polarizing-filter-for-white-light-wedges-pf-1","title":"Lunt Polarizing Filter for White Light Wedges","description":"\u003ch2\u003eLunt Polarizing Filter for White Light Wedges\u003c\/h2\u003e\n\u003cp\u003eWhen doing visual work with Lunt White Light Wedges, we recommend adding a Lunt Polarizing Filter for more comfortable viewing. We offer both 1.25\" \u0026amp; 2\" Polarizing Filters. Choose the one that matches the barrel size of your White Light Wedge. Simply screw the filter onto the barrel of your eyepiece, and then adjust the brightness of the scene by rotating the top-most filter.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eA Polarizing Filter will help control the brightness of the Sun’s image when using a Lunt White Light Wedge visually.\u003c\/li\u003e\n\u003cli\u003eChoose either a 1.25″ or 2″ Polarizing Filter, whichever size matches the barrel of your eyepiece.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eIn the Box\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli\u003eLunt Polarizing Filter for White Light Wedges - 1.25\" \/ 2\"\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003eLunt 5-Year Warranty\u003c\/p\u003e","brand":"Lunt","offers":[{"title":"1.25\" Polarizing Filter","offer_id":43697671667941,"sku":"LS-PF1.25","price":36.0,"currency_code":"CAD","in_stock":true},{"title":"2\" Polarizing Filter","offer_id":43697671700709,"sku":"LS-PF-2","price":45.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/lunt-polarizing-filter-for-white-light-wedges-astronomy-plus-1.webp?v=1690483736"},{"product_id":"lunt-60mm-ha-etalon-filter-ls60fha","title":"Lunt 60mm Ha Etalon Filter (LS60FHaP) - New Gen Etalon","description":"\u003ch1\u003eLunt 60mm Ha Etalon Filter\u003c\/h1\u003e\n\u003cp\u003eThe Lunt LS60FHa is a 60 mm aperture (no central obstruction) integrally tuned etalon for use on a customer supplied refractor.\u003c\/p\u003e\n\u003cp\u003eA B600 blocking filter provides full disk images on telescopes up to 540 mm focal length. Larger blocking filters suitable for longer focal length telescopes are also available options.  Choose the filter\/blocking filter package that is suitable for your telescope and your focuser size:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eB600 – Up to 540 mm focal length, offered in 1.25″ or 2″ diagonal\u003c\/li\u003e\n\u003cli\u003eB1200 – Up to 1080 mm focal length, offered in 1.25″ or 2″ diagonal\u003c\/li\u003e\n\u003cli\u003eB1800 – Up to 1620 mm focal length, offered in 1.25″ or 2″ diagonal\u003c\/li\u003e\n\u003cli\u003eB3400 – Up to 3060 mm focal length, offered in 2″ straight-through tube\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis Hydrogen-alpha filter is designed to retrofit (adapters required) a customer-supplied telescope for use during the day. It is easily removable so that the scope can continue to be used for night observing.\u003c\/p\u003e\n\u003cp\u003eBecause the LS60FHa H-Alpha Filter has an estimated bandpass of \u0026lt;0.4 Angstrom, it is capable of providing high contrast views of both surface and edge detail. Adding an additional etalon system (double-stacking) will reduce the bandpass to ~\u0026lt;0.22 (dependent upon scope) allowing for higher resolution viewing and\/or imaging. An LS60FHa H-Alpha Filter without blocking filter is offered for this purpose or for those who already have a Lunt blocking filter. A Lunt blocking filter must be used with Lunt Ha filters at all times.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLS60FHa H-Alpha Filter, 60mm front-mounted non-obstructed hydrogen-alpha filter for use on a wide range of telescopes!\u003c\/li\u003e\n\u003cli\u003e\n\u003cul\u003e\n\u003cli\u003eAccommodates LS60THA and LS60MT Telescopes without need for adapter\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eConnect the Lunt LS60FHa to your telescope with the appropriate adapter (sold separately), or use it to double-stack on an existing Lunt 60mm https:\/\/luntsolarsystems.com\/product-category\/solar-deep-space-universal-telescopes\/60mm-universal-telescopes\/”\u0026gt;LS60THa solar telescope or filter for a ~\u0026lt;0.22A band pass!\u003c\/li\u003e\n\u003cli\u003eChoose the appropriate LS60FHa and blocking filter for your telescope’s focal length and focuser size.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eOptical Aperture: 60 mm\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eEtalon: Internal \u0026lt;0.4 Angstrom\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eTuning: Tilt\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eFocal Length: Customer Telescope\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eStorage: Aluminum finished hard case with fitted foam\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eWeight: 3 lb (~1.5 kg)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp\u003eLunt 60mm Ha Etalon Filter\u003cbr\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003eLunt 5-Year Warranty\u003c\/p\u003e","brand":"Lunt","offers":[{"title":"Default Title","offer_id":43125689942245,"sku":"LS-LS60FHaP","price":2093.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/lunt-60mm-ha-etalon-filter-ls60fha-astronomy-plus-1.webp?v=1690483749"},{"product_id":"lunt-50mm-ha-etalon-filter-ls50fha-new-gen","title":"Lunt 50mm Ha Etalon Filter for LS60Tha \u0026 LS60MT (LS50FHaP) - New Gen Etalon","description":"\u003ch1\u003eLunt 50mm Ha Etalon Filter for LS60Tha \u0026amp; LS60MT - New Gen Etalon\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli\u003eLS50FHa solar filter front-mounted non-obstructed hydrogen-alpha filter for use on Lunt ED Telescopes or Double Stacking an existing Lunt Solar System!\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAccommodates LS60THA and LS60MT Telescopes without need for adapter\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eConnect the Lunt LS50FHa to an appropriately sized refractor of your choosing, or use it to double-stack on an existing Lunt 60mm Telescopes for a ~\u0026lt;0.22A band pass!\u003c\/li\u003e\n\u003cli\u003eChoose the appropriate LS50FHa and blocking filter to match your Visual and\/or Imaging requirements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDSII Requirements: \u003c\/strong\u003eNo adapter is needed to add one LS50FHa to another LS50FHa for double-stacking. The LS50FHa attaches natively to Lunt 60mm Model Telescopes (Lunt LS60THa and Lunt 60mm Universal Telescope)\u003cem\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThe Lunt LS50FHa Solar Filter is a 50 mm aperture (no central obstruction) integrally tuned etalon for use on Lunt ED Refractors.\u003c\/p\u003e\n\u003cp\u003eLunt Solar will be introducing a larger selection of ED Telescopes that will meet your Solar needs for Daytime observing and meet the additional requirements of Nighttime observing.  In this way you can use one scope for day and night.\u003c\/p\u003e\n\u003cp\u003eLunt Solar also offer a full line of dedicated Solar Telescopes.\u003c\/p\u003e\n\u003cp\u003eYou MUST use a matching Lunt Blocking Filter with a Lunt Solar front mounted Filter (this is a safety requirement). For this reason choose the blocking filter that best suits your requirements for the system. It’s important to realize that a larger blocking filter is recommended for imaging due to the need for in-focus of the camera.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eB600 – Visual Use\u003c\/li\u003e\n\u003cli\u003eB1200 – Imaging and Visual Use\u003c\/li\u003e\n\u003cli\u003eB1200 – Visual Use\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/luntsolarsystems.com\/product\/lunt-blocking-filters-b600-b1200-b1800\/\"\u003eB1800\u003c\/a\u003e – Imaging and Visual Use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eRemoving the LS50FHa Solar Filter for night use\u003c\/h4\u003e\n\u003cp\u003eThe Lunt ED refractors are designed to retrofitted with the LS50FHa Hydrogen-alpha Filter.  In this way you can use the ED telescopes during the day. Notably, they are easily removable so that the Lunt ED scope can continue to be used for night observing.\u003c\/p\u003e\n\u003cp\u003eBecause the LS50FHa Solar Filter has an estimated bandpass of \u0026lt;0.4 Angstrom it is capable of providing high contrast views of both surface and edge detail. Significantly, adding an additional etalon system (double-stacking) will reduce the bandpass to ~\u0026lt;0.22. Allowing for higher resolution viewing and\/or imaging. In addition, the part number LS50FHa is offered for this purpose or for those who already have a Lunt blocking filter.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLS50FHa solar filter front-mounted non-obstructed hydrogen-alpha filter for use on Lunt ED Telescopes or Double Stacking an existing Lunt Solar System!\u003c\/li\u003e\n\u003cli\u003eAccommodates LS60THA and LS60MT Telescopes without need for adapter\u003c\/li\u003e\n\u003cli\u003eConnect the Lunt LS50FHa to an appropriately sized refractor of your choosing, or use it to double-stack on an existing Lunt 60mm Telescopes for a ~\u0026lt;0.22A band pass!\u003c\/li\u003e\n\u003cli\u003eChoose the appropriate LS50FHa and blocking filter to match your Visual and\/or Imaging requirements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOptical Aperture: 50 mm\u003c\/li\u003e\n\u003cli\u003eEtalon: Internal \u0026lt;0.4 Angstrom\u003c\/li\u003e\n\u003cli\u003eTuning: Tilt\u003c\/li\u003e\n\u003cli\u003eFocal Length: ED80 (f\/7) ED102 (f\/7)\u003c\/li\u003e\n\u003cli\u003eFilter Storage: Aluminum finished hard case with fitted foam\u003c\/li\u003e\n\u003cli\u003eFilter Weight: 2 lb (~1kg)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eLunt 50mm Ha Etalon Filter\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003ch3\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\n\u003cp\u003eLunt 5-Year Warranty\u003c\/p\u003e","brand":"Lunt","offers":[{"title":"Default Title","offer_id":43125690007781,"sku":"LS-LS50FHaP","price":1603.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/lunt-50mm-ha-etalon-filter-ls50fha-astronomy-plus-1.webp?v=1690483749"},{"product_id":"lunt-50mm-double-stack-filter","title":"Lunt LS50C Compact Double-Stack Filter - Newest Version (LS50CP)","description":"\u003ch1\u003eLunt LS50C Compact Double-Stack Filter\u003c\/h1\u003e\n\u003cp\u003eThe specially-designed Lunt Solar Systems LS50C is a compact double stack filter. Notably, it was made especially for the Lunt LS50THa H-alpha Solar Telescope. The LS50C lowers the bandpass of the LS50THa to less than \u0026lt;0.22 Angstroms giving you truly stellar, professional quality views. The LS50C gives you the option of upgrading your single-stack LS50THa to a double stack solar telescope. Furthermore, you can install the upgrade yourself. Because the LS50THa screws on the the front of your LS50THa, so you won’t have to send it back to our factory.\u003cbr\u003e\u003cbr\u003eBy adding a double stack filter to your solar telescope, you will be able to see a crisp, clear image of the surface prominence’s of the Sun. This will give you the images that you need for research or just viewing enjoyment.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003ePlease Note:\u003c\/strong\u003e This filter cannot be used without a blocking filter.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe Lunt LS50C is a compact double-stacking filter for the LS50THa telescope\u003c\/li\u003e\n\u003cli\u003eIt lowers the bandpass to \u0026lt;0.22 Angstroms\u003c\/li\u003e\n\u003cli\u003eScrews easily onto the front of the LS50THa\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eLunt 50mm Compact Ha Etalon Filter\u003cbr\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003ch3\u003eWarranty \u0026amp; Manuals\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cp\u003eLunt 5-Year Warranty\u003c\/p\u003e","brand":"Lunt","offers":[{"title":"Default Title","offer_id":43133158654181,"sku":"LS-LS50CP","price":1393.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/lunt-50mm-compact-ha-etalon-filter-ls50c-astronomy-plus-1.webp?v=1690483750"},{"product_id":"astronomik-uhc-e-filter","title":"Astronomik UHC-E Filter","description":"\u003ch2\u003eAstronomik UHC-E Filter\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eThe Astronomik UHC-E filter was developed for astrophotography of emission nebulae and comets under light-polluted skies.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Astronomik UHC-E filter enhances the contrast between these celestial objects and the sky background by blocking the typical emissions from street lights, as well as all lines of natural airglow.\u003c\/p\u003e\n\u003cp\u003eWith a Full-Width-Half Maximum (FWHM) of 45nm, the Astronomik UHC-E filter ensures a significant contrast boost while allowing more starlight to pass through compared to the Astronomik UHC filter. In addition, the transmission range of the Astronomik UHC-E filter includes the typical emission bands of comets, making them much easier to photograph.\u003c\/p\u003e\n\u003ch2\u003eOther uses\u003c\/h2\u003e\n\u003cp\u003eThe 1.25\" and 2\" socket models can be used for observations from light-polluted areas.\u003c\/p\u003e\n\u003ch2\u003eAlternatives\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eThe Astronomik UHC filter is better suited for photographing gas nebulae in areas with strong light pollution. Its narrower FWHM suppresses the sky background even more effectively.\u003c\/li\u003e\n\u003cli\u003eWe recommend the Astronomik CLS and CLS CCD filters for photographing galaxies and star clusters in areas with moderate light pollution.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSuitability of the Astronomik UHC-E filters\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCMOS and CCD photography:\u003c\/strong\u003e Good, requires an additional \u003ca href=\"https:\/\/www.astronomik.com\/en\/Infrared-Special\/IR-Block-Filters\/\"\u003eAstronomik IR-Block\u003c\/a\u003e filter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDSLR photography (original):\u003c\/strong\u003e Good, color balance is shifted, but contrast is enhanced\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDSLR photography (astro-modified):\u003c\/strong\u003e Very good, color balance is also good\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDSLR photography (MC-modified):\u003c\/strong\u003e Very good, requires an additional Astronomik IR-Block filter\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eClip-Filters for mirrorless Canon EOS R APS-C cameras\u003c\/h2\u003e\n\u003cp\u003eCanon EOS R APS-C series cameras are an excellent choice for astrophotography. With Astronomik Clip-Filters, you can use our full range of filters with your camera to capture stunning images. Whether paired with a camera lens or a telescope, our clip filters ensure maximum image quality and performance from your setup.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Astronomik Clip-Filters offer a number of practical advantages that make them an ideal choice for astrophotographers:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInstalling and removing the Astronomik Clip-Filter is very quick and easy and requires no extra tools or modifications to the camera body. They can be changed at any time, even at night.\u003c\/li\u003e\n\u003cli\u003eAll lens functions, such as focus, aperture, and image stabilization remain fully functional.\u003c\/li\u003e\n\u003cli\u003eThe Astronomik Clip-Filters are held securely in place without stressing the high-quality glass.\u003c\/li\u003e\n\u003cli\u003eThe Astronomik Clip-Filters are designed and optimized for use with both standard camera lenses and telescopes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eThrough the Astronomik Clip-Filters, we were able to solve several common issues faced by astrophotographers:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLarge filters for large camera lenses are very expensive.\u003c\/li\u003e\n\u003cli\u003eUsing a filter holder between the camera body and the lens prevents focusing to infinity.\u003c\/li\u003e\n\u003cli\u003eFor very fast telescopes (low f-number) like the Vixen R200SS or the Takahashi “Epsilon” astrograph, a filter drawer or filter wheel can not be used because the distance to the corrector lenses would be changed.\u003c\/li\u003e\n\u003cli\u003eLong exposure times lead to dust settling on the camera’s sensor chip.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAdditionally, all Astronomik EOS R APS-C Clip-Filters serve as an excellent dust shield, protecting the sensor during long exposures. If you only need a dust shield without filtering effects, the Astronomik MC-Clear EOS R APS-C Clip-Filter is the right choice.\u003c\/p\u003e\n\u003cp\u003eUse Astronomik filters for your Canon EOS R APS-C camera and enjoy marvelous images with an ultra-light equipment!\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #b13b3c;\"\u003eNOTE: Please store the Clip-Filter in the supplied storage box and do not leave it in the camera permanently.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAstronomik filters are diffraction-limited, ensuring that the optical performance (resolution and contrast) of your telescope is not compromised. Thanks to the high-precision machining of the glas substrate, all Astronomik filters are parfocal. The wedge errors are far below all common tolerances. Therefore, all issues concerning focal distances and the exact alignment of images from each color channel are effectively eliminated.\u003c\/p\u003e\n\u003cp\u003eAll Astronomik filters are ideal for modern cameras, including both CMOS- and CCD-based models, ensuring you capture the best possible images with your equipment. Sharpness, contrast, and the absence of any reflections and halos are guaranteed. Even with bright stars in the field of view, nebulae and galaxies will be captured with the finest structures. The Astronomik MFR and MaxFR coatings are designed for optimal performance across a wide range of focal ratios of the optics used.\u003c\/p\u003e\n\u003cp\u003eEvery Astronomik filter undergoes a rigorous quality control process before delivery.\u003c\/p\u003e\n\u003ch2\u003eCompatible Canon EOS R APS-C cameras\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left;\"\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth style=\"text-align: center;\"\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: left;\"\u003eCanon EOS R7\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cimg style=\"width: 23px; height: 18px;\" src=\"https:\/\/www.astronomik.com\/media\/c5\/79\/36\/1775813946\/Haken.svg?ts=1775813946\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: left;\"\u003eCanon EOS R10\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cimg style=\"width: 23px; height: 18px;\" src=\"https:\/\/www.astronomik.com\/media\/c5\/79\/36\/1775813946\/Haken.svg?ts=1775813946\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: left;\"\u003eCanon EOS R50\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cimg style=\"width: 23px; height: 18px;\" src=\"https:\/\/www.astronomik.com\/media\/c5\/79\/36\/1775813946\/Haken.svg?ts=1775813946\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: left;\"\u003eCanon EOS R50 V\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cimg style=\"width: 23px; height: 18px;\" src=\"https:\/\/www.astronomik.com\/media\/c5\/79\/36\/1775813946\/Haken.svg?ts=1775813946\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: left;\"\u003eCanon EOS R100\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cimg style=\"width: 23px; height: 18px;\" src=\"https:\/\/www.astronomik.com\/media\/c5\/79\/36\/1775813946\/Haken.svg?ts=1775813946\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eNon-compatible Canon lenses\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left;\"\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth style=\"text-align: center;\"\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: left;\"\u003eCanon RF 14mm f\/1.4 L VCM\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cimg style=\"width: 18px; height: 18px;\" src=\"https:\/\/www.astronomik.com\/media\/9e\/75\/05\/1775813946\/Kreuz.svg?ts=1775813946\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: left;\"\u003eCanon RF 28mm F2.8 STM\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cimg style=\"width: 18px; height: 18px;\" src=\"https:\/\/www.astronomik.com\/media\/9e\/75\/05\/1775813946\/Kreuz.svg?ts=1775813946\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: left;\"\u003eCanon RF 35mm F1.8 IS Macro STM\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cimg style=\"width: 18px; height: 18px;\" src=\"https:\/\/www.astronomik.com\/media\/9e\/75\/05\/1775813946\/Kreuz.svg?ts=1775813946\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: left;\"\u003eCanon RF 85mm F1.2L USM\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cimg style=\"width: 18px; height: 18px;\" src=\"https:\/\/www.astronomik.com\/media\/9e\/75\/05\/1775813946\/Kreuz.svg?ts=1775813946\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: left;\"\u003eCanon Extender RF 2x\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cimg style=\"width: 18px; height: 18px;\" src=\"https:\/\/www.astronomik.com\/media\/9e\/75\/05\/1775813946\/Kreuz.svg?ts=1775813946\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: left;\"\u003eCanon Extender RF 1.4x\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cimg style=\"width: 18px; height: 18px;\" src=\"https:\/\/www.astronomik.com\/media\/9e\/75\/05\/1775813946\/Kreuz.svg?ts=1775813946\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTypical transmission of 94% at 486nm (H-beta)\u003c\/li\u003e\n\u003cli\u003eTypical transmission of 95% at 496nm (OIII)\u003c\/li\u003e\n\u003cli\u003eTypical transmission of 95% at 501nm (OIII)\u003c\/li\u003e\n\u003cli\u003eTypical transmission of 94% at 656nm (H-alpha)\u003c\/li\u003e\n\u003cli\u003eTransmission range: 465nm to 530nm and above 645nm\u003c\/li\u003e\n\u003cli\u003eFull-Width-Half Maximum (FWHM): 45nm\u003c\/li\u003e\n\u003cli\u003eGlass thickness: 1mm (except Astronomik OWB Type 3 and XT filters)\u003c\/li\u003e\n\u003cli\u003eFinely polished optical glass, free of any striae, residual stresses, and bubbles\u003c\/li\u003e\n\u003cli\u003eExtremely scratch-resistant and durable coating\u003c\/li\u003e\n\u003cli\u003eCompletely resistant against high humidity and aging effects\u003c\/li\u003e\n\u003cli\u003eParfocal with other Astronomik filters\u003c\/li\u003e\n\u003cli\u003eDiffraction-limited\u003c\/li\u003e\n\u003cli\u003eOptimized spectral windows\u003c\/li\u003e\n\u003cli\u003eDelivered in a high-quality, long-lasting filter box\u003c\/li\u003e\n\u003cli\u003eMade in Germany\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSelected frame size Astronomik UHC-E Filter\u003c\/li\u003e\n\u003cli\u003ePlastic Storage Case\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 class=\"tab__content tab.box tab__content--active\" data-content=\"tab-3\" aria-labelledby=\"tab-title-3\" aria-hidden=\"false\" role=\"tabpanel\"\u003e\n\u003cspan\u003eManual \u0026amp; Warranty\u003c\/span\u003e\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.astronomik.com\/en\/warranty-garantie.html\"\u003eAstronomik\u003cspan\u003e \u003c\/span\u003e\u003c\/a\u003e10 year warranty\u003c\/p\u003e","brand":"Astronomik","offers":[{"title":"1.25\" (M28.5)","offer_id":44131864445157,"sku":"AK-8h00f0","price":102.0,"currency_code":"CAD","in_stock":true},{"title":"2\" (M48)","offer_id":44131864477925,"sku":"AK-8h00f1","price":189.0,"currency_code":"CAD","in_stock":true},{"title":"Clip-Filter EOS APS-C","offer_id":44131864510693,"sku":"AK-8h00in","price":148.0,"currency_code":"CAD","in_stock":true},{"title":"XT Clip-Filter EOS APS-C","offer_id":44131864543461,"sku":"AK-8h00ks","price":162.0,"currency_code":"CAD","in_stock":true},{"title":"Clip-Filter EOS R APS-C","offer_id":48895032951013,"sku":"AK-8h11ux","price":176.0,"currency_code":"CAD","in_stock":true},{"title":"Clip-Filter EOS XL","offer_id":44131864576229,"sku":"AK-8h00lt","price":203.0,"currency_code":"CAD","in_stock":true},{"title":"Clip-Filter EOS R XL","offer_id":44131864608997,"sku":"AK-8h11g6","price":230.0,"currency_code":"CAD","in_stock":true},{"title":"Clip-Filter EOS M","offer_id":44131864641765,"sku":"AK-8h00r9","price":162.0,"currency_code":"CAD","in_stock":true},{"title":"Clip-Filter Sony alpha 7","offer_id":44131864674533,"sku":"AK-8h00xd","price":216.0,"currency_code":"CAD","in_stock":true},{"title":"Clip-Filter Nikon XL","offer_id":44131864707301,"sku":"AK-8h11av","price":216.0,"currency_code":"CAD","in_stock":true},{"title":"Clip-Filter Nikon Z XL","offer_id":44131864740069,"sku":"AK-8h11kw","price":230.0,"currency_code":"CAD","in_stock":true},{"title":"Clip-Filter Pentax K-1","offer_id":44131864772837,"sku":"AK-8h11ej","price":216.0,"currency_code":"CAD","in_stock":true},{"title":"T-Mount (M42x0.75)","offer_id":44131864805605,"sku":"AK-8h00ix","price":157.0,"currency_code":"CAD","in_stock":true},{"title":"SC Rear Cell (2\" \/ 24TPI)","offer_id":44131864838373,"sku":"AK-8h00bt","price":216.0,"currency_code":"CAD","in_stock":true},{"title":"31mm","offer_id":44131864871141,"sku":"AK-8h00i2","price":116.0,"currency_code":"CAD","in_stock":true},{"title":"36mm","offer_id":44131864903909,"sku":"AK-8h00i3","price":129.0,"currency_code":"CAD","in_stock":true},{"title":"50mm","offer_id":44131864936677,"sku":"AK-8h00bu","price":189.0,"currency_code":"CAD","in_stock":true},{"title":"M49","offer_id":44131864969445,"sku":"AK-8h00vl","price":203.0,"currency_code":"CAD","in_stock":true},{"title":"M52","offer_id":44131865002213,"sku":"AK-8h00vm","price":203.0,"currency_code":"CAD","in_stock":true},{"title":"M55","offer_id":44131865034981,"sku":"AK-8h00vn","price":380.0,"currency_code":"CAD","in_stock":true},{"title":"M58","offer_id":44131865067749,"sku":"AK-8h00vo","price":380.0,"currency_code":"CAD","in_stock":true},{"title":"M62","offer_id":44131865100517,"sku":"AK-8h00vp","price":380.0,"currency_code":"CAD","in_stock":true},{"title":"M67","offer_id":44131865133285,"sku":"AK-8h00vq","price":407.0,"currency_code":"CAD","in_stock":true},{"title":"M72","offer_id":44131865166053,"sku":"AK-8h00vr","price":407.0,"currency_code":"CAD","in_stock":true},{"title":"M77","offer_id":44131865198821,"sku":"AK-8h00vs","price":407.0,"currency_code":"CAD","in_stock":true},{"title":"50 x 50mm² unmounted","offer_id":44131865231589,"sku":"AK-8h00by","price":216.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/astronomik-uhc-e-filter-astronomy-plus-1.jpg?v=1690483816"},{"product_id":"astronomik-oiii-visual-filter","title":"Astronomik OIII Visual Filter","description":"\u003ch2\u003eAstronomik OIII Visual Filter\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eFrom the start, the Astronomik OIII Visual Filter has been very specifically designed for the visual observation of gaseous and planetary nebulae. The extremely narrow pass band of the two OIII lines brings a substantial contrast gain to these lines even under best observation conditions. On faint super nova remnants and faint planetary nebulae the Astronomik OIIIfilter will often make the difference as to whether the object can bee seen or not!\u003c\/strong\u003e The optimal aperture ratio for the use of the filter is 1:3 to 1:15 with apertures of more than 6\" (150mm). Transmission losses and chromatic distortions, which arise with other filters, occur with Astronomik OIII filters only when extremely bright aperture ratios of 1:3 and more come into play. The Astronomik OIII filters thus can expand the view of dispersed objects, generally speaking, to the whole visual field of view of the eyepiece and are not limited to only the center of the eyepiece.\u003c\/p\u003e\n\u003ch4\u003eMain use\u003c\/h4\u003e\n\u003cp\u003eSince enough light must be available to make use of the OIII filter it is best to use this filter with apertures of more than 6\" (150mm). Smaller instruments do not gather enough light for meaningful and satisfying astronomical work. However, please note: Many experienced Deep Sky observers, with apertures of more than 10\" (250mm), prefer using the OIII filter instead of the more versatile UHC filter. Due to the high optical quality of the Astronomik OIII filter substrate you will see the same needle-sharp stars as you would from your regular telescope. [caption id=\"attachment_3936\" align=\"aligncenter\" width=\"592\"]\u003c\/p\u003e\n\u003ch4\u003eSuitability\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eVisual observation (dark skies): Very good, huge contrast enhancement at O III-emission nebulas\u003c\/li\u003e\n\u003cli\u003eVisual observation (urban skies): Very good, huge contrast enhancement at O III-emission nebulas\u003c\/li\u003e\n\u003cli\u003eFilm photography: It depends, very long exposure time\u003c\/li\u003e\n\u003cli\u003eCCD photography: Good, when used with an additional IR-block-filter\u003c\/li\u003e\n\u003cli\u003eDSLR photography (original): Very good, huge contrast enhancement at O III-emission nebulas\u003c\/li\u003e\n\u003cli\u003eDSLR photography (astro modified): Very good, huge contrast enhancement at O III-emission nebulas\u003c\/li\u003e\n\u003cli\u003eDSLR photography (MC modified): Good, when used with an additional IR-block-filter\u003c\/li\u003e\n\u003cli\u003eWebcam \/ Video (Planets): Unsuitable\u003c\/li\u003e\n\u003cli\u003eWebcam \/ Video (Deep Sky): Reasonable, if light pollution is a big problem and OIII Objects are beeing observed\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specification\u003c\/h3\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/astronomik_oiii_trans_480x480.png?v=1687450098\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan style=\"color: #ff8000;\"\u003eThe major emission lines of artifical light pollution: | Hg 435,8nm | Hg 546,1nm | Hg 577,0nm | Hg 578,1nm | | Na 589,0nm | Na 589,6nm | Na 615,4nm | Na 616,1nm |\u003c\/span\u003e \u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan style=\"color: #20a652;\"\u003eThe major emission lines of nebulas: H-β 486,1nm | OIII 495,9nm | OIII 500,7nm | H-α 656,3nm\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003eHow to Read the Chart\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eThe \u003cb\u003ehorizontal axis\u003c\/b\u003e is the \u003cb\u003eWavelength in Nanometers\u003c\/b\u003e (nm). 400nm is deep blue, at 520nm the human eye senses green and at 600nm red. At 656nm is the famous “H-Alpha” emission line of hydrogen.\u003c\/li\u003e\n\u003cli\u003eThe \u003cb\u003etransmission in %\u003c\/b\u003e is plotted on the \u003cb\u003evertical axis\u003c\/b\u003e.\u003c\/li\u003e\n\u003cli\u003eThe red line shows the \u003cb\u003etransmission of the filter\u003c\/b\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eVisual filters\u003c\/b\u003e: The \u003cb\u003egrey\u003c\/b\u003e line in the background shows the relative sensitivity of the human eye at night. The maximum is at ~510nm and drops to longer and shorter wavelengths. You can easily see, that you can´t see anything of the H-alpha line at night (even if you can during daylight!) The sensitivity at 656nm is 0% at night!\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePhotographic filters\u003c\/b\u003e: The grey line in the background shows the sensitivity of a typical CCD sensor.\u003c\/li\u003e\n\u003cli\u003eThe most important \u003cb\u003eartifical emission\u003c\/b\u003e lines are shown in orange. The artifical light pollution is dominated by see mercury (Hg) and sodium (Na), which are used in nearly all streetlights.\u003c\/li\u003e\n\u003cli\u003eThe most important \u003cb\u003eemission lines from nebulas\u003c\/b\u003e are shown in green. The most important lines are from ionized Hydrogen (H-alpha and H-beta) and double ionized oxygen (OIII).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eTechnical Data\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003etyp. 95% transmission at 496nm (OIII)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003etyp. 95% transmission at 501nm (OIII)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eComplete blocking of all disturbing wavelength coverages\u003c\/li\u003e\n\u003cli\u003eThe ideal filter for telescopes 10 \" (25cm) and larger\u003c\/li\u003e\n\u003cli\u003eMain operational use: Planetary nebulas \u0026amp; super nova remnants\u003c\/li\u003e\n\u003cli\u003eNo moisture-sensitivity, no aging, and totally scratch-proof\u003c\/li\u003e\n\u003cli\u003eExcellent carrier material - substrate is optically polished. The optical performance (resolution \u0026amp; contrast) of your telescope is not reduced in any way by the filter.\u003c\/li\u003e\n\u003cli\u003eParfocal with other Astronomik filters\u003c\/li\u003e\n\u003cli\u003eGlass thickness: 1mm\u003c\/li\u003e\n\u003cli\u003eCompletely resistant against high humidity, scratches and aging effects\u003c\/li\u003e\n\u003cli\u003eDiffraction limited, the filter will not reduce the optical performance of your telescope!\u003c\/li\u003e\n\u003cli\u003eAstronomik filters are delivered in a high-quality, long lasting, filter box\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIn the box\u003c\/h3\u003e\n\u003cp\u003eFilter and filter case\u003c\/p\u003e\n\u003ch3\u003eManual \u0026amp; Warranty\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/istronomyplus.com\/pages\/astronomik-warranty\" target=\"_blank\"\u003eAstronomik 10-Year Warranty\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Astronomik","offers":[{"title":"1.25\" (M28.5)","offer_id":44116153204965,"sku":"AK-8h0006","price":135.0,"currency_code":"CAD","in_stock":true},{"title":"2\" (M48)","offer_id":44116153237733,"sku":"AK-8h0045","price":271.0,"currency_code":"CAD","in_stock":true},{"title":"SC Rear Cell (2'' \/ 24TPI)","offer_id":44116153270501,"sku":"AK-8h00bk","price":312.0,"currency_code":"CAD","in_stock":true},{"title":"T-Mount (M42 x 0.75)","offer_id":44127359631589,"sku":"AK-8h00bj","price":271.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/astronomik-oiii-visual-filter-astronomy-plus-1.jpg?v=1690483935"},{"product_id":"astrozap-full-aperture-solar-filter","title":"Astrozap Full Aperture Solar Filter (391-397mm)","description":"\u003ch2\u003eAstrozap Full Aperture Solar Filter\u003c\/h2\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/howtomeasurethesizeen_480x480.png?v=1708015233\"\u003e\u003c\/p\u003e\n\u003cp\u003ePlease see that document before choosing the size of your filter: \u003ca href=\"https:\/\/istronomyplus.com\/pages\/astrozap-how-to-choose-the-right-solar-filter\" title=\"null\" target=\"_blank\"\u003eHow to Choose the right Astrozap Solar Filter\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eThe Astrozap Full Aperture Solar Filter is offered in size from 41mm to 403mm. These are safe full aperture (sometimes referred as clear aperture) solar filters. This means that it allows the most light possible into the telescope because it allows the full aperture of your telescope to be viewed. The full aperture allows the best possible daytime viewing when there is minimal atmospheric turbulence. If turbulence is present a mask can be put over the end of the filter to effectively reduce the aperture.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThis premium solar filter has an aluminum cell that is secured and centered to the tube end of the telescope with nylon thumb screws and felt padding. The clear aperture is made with high quality hand selected and inspected reflective coated glass. This is the highest quality, durable, glass, full aperture solar filter on the market. The sun is viewed in a natural yellowish-orange image. The filter can be used for direct viewing through the telescope or for photography. The filter box is foam lined for protection and shock absorption during handling. It is durable enough to store the filter while not in use.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications and Size\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eSize Matching Specifications for Full Aperture Glass Solar Filters\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSKU #\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOutside Diameter Fit Range (Your optical tube OD needs to be within this range of fit)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTelescopes, Finders and Other Optics that Fit this Filter Size (If your model is not listed, use the \"\u003c\/strong\u003e\u003ca href=\"https:\/\/istronomyplus.com\/pages\/astrozap-how-to-choose-the-right-solar-filter\" title=\"How to Choose the Right Astrozap Solar Filter\" target=\"_blank\"\u003e\u003cstrong\u003eHow to Choose the Right Astrozap Solar Filter\u003c\/strong\u003e\u003c\/a\u003e\u003cstrong\u003e\" help page.)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAZ-1501\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e1 5\/8” (41mm) to1 7\/8” (48mm)\u003c\/p\u003e\n\u003cp\u003eCelestron FirstScope 60 (older), Finders, Small Refractors and Spotting Scopes\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAZ-1502\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e1 7\/8” (48mm) to2 1\/8” (54mm)\u003c\/p\u003e\n\u003cp\u003eFinders, Small Refractors and Spotting Scopes\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAZ-1503\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e2” (51mm) to 2 ¼” (57mm)\u003c\/p\u003e\n\u003cp\u003eFinders, Small Refractors and Spotting Scopes; Celestron 9X50 finder; Williams Optics 7 X 50 finders\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAZ-1504\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e2 3\/8” (60mm) to 2 5\/8” (67mm)\u003c\/p\u003e\n\u003cp\u003eFinders, Small Refractors and Spotting Scopes; Meade: DS-2060, M-40 AZ\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAZ-1505\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e2 5\/8” (67mm) to 2 7\/8” (73mm)\u003c\/p\u003e\n\u003cp\u003eMeade 60 (older models), Refractors and Finders\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAZ-1506\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e2 7\/8” (73mm) to 3 1\/8” (79mm)\u003c\/p\u003e\n\u003cp\u003eCelestron 60; Meade DS-60 EC; Orion 70; Takahashi FS-60; Vixen A70Lf\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAZ-1507\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e3 1\/8” (79mm) to 3 3\/8” (86mm)\u003c\/p\u003e\n\u003cp\u003eMeade DS-80EC; StellarVue: NightHawk 80mm (with dew shield), SV80s; Tele Vue Ranger; Takahashi FC-50, FC-60, FC-60C; Williams Optics ZS66, ZenithStar Racing; Zeiss Telementor Refractor\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAZ-1508\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e3 3\/8” (86mm) to 3 5\/8” (92mm)\u003c\/p\u003e\n\u003cp\u003eCelestron FirstScope: 60 AZ \u0026amp; EQ, 80 EQ; Meade: ETX-60AT, ETX-70AT; Orion: Observer 60 Altaz \u0026amp; EQ; Tele Vue-76, Tele Vue Pronto; Vixen: A80Mf, A80SSWT, ED81SWT\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAZ-1509\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e3 5\/8” (92mm) to 3 7\/8” (98mm)\u003c\/p\u003e\n\u003cp\u003eCelestron 80 (old); Meade DS-70, ETX-80 AT-TC, DS 2080; Orion: ShortTube 80, Observer 70, Astroview 80\/90, Explorer 80\/90; Takahashi SKY 9011; Vixen: ED8sf, ED100sf\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAZ-1510\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e3 7\/8” (98mm) to 4 1\/8” (105mm)\u003c\/p\u003e\n\u003cp\u003eMeade ETX 90; Celestron: NexStar 60\/80\/80GT, FirstScope 90EQ; Orion: StarMax 90, Apex 90; StellarVue: NightHawk APLANAT, NIghtHawk Next Generation (with dew shield), SV809D (with dew shield); Questar 3.5; Williams Optics: ZS80 II ED, Megrez 80\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAZ-1511\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e4 1\/8” (105mm) to 4 3\/8” (111mm)\u003c\/p\u003e\n\u003cp\u003eAstroPhysics 90mm; Meade DS-90; Tele Vue-85; GP-102; Orion ShortTube 90, GoScope 350; Transporter 70 EQ; Takahashi: FS-78, FCL-90 (Sky 90); Vixen 4;\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAZ-1512\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e4 3\/8 (111mm) to 4 5\/8 (117mm)\u003c\/p\u003e\n\u003cp\u003eOrion: ED 80\/100 Refractors, StarMax\/Apex 102, AstroView 100, SkyView Pro 100, C80 SLT; Vixen ED103SWT; Takahashi TSA-102; Williams Optics: Megrez 90\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAZ-1513\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e4 5\/8” (117mm) to 4 7\/8” (124mm)\u003c\/p\u003e\n\u003cp\u003eCelestron: FirstScope 76, NexStar 4\/4SE, C4, 102HD; Meade: ETX 105, DSX 102, 2045; StellarVue: SV102ED; Synta SkyWatcher 80 ED; Sky-Watcher: Evostar 80 ED; Questar 4.75”; Takahashi: FSQ-106 NUH\/FSQ-106 ED; Tele Vue: 101, 102; Vixen VMC110L\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAZ-1514\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e4 7\/8” (124mm) to 5 1\/8” (130mm)\u003c\/p\u003e\n\u003cp\u003eCelestron C102 HD (older); Meade 5000 ED APO 80mm; Apogee; TMB 105\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAZ-1515\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e5 3\/8” (137mm) to 5 5\/8” (143mm)\u003c\/p\u003e\n\u003cp\u003eCelestron FirstScope 102; Meade: 4500, DS-127, 4”APO, DS 2000, DS2114, POLARIS DS 114; Orion: AstroView 120 \u0026amp;120ST, SkyView Pro 120, StarBlast, StarMax 127, SkyView Pro 127, Apex 127; Sky-Watcher: Skymax 127; StellarVue: SV4, SV102T; Takahashi: FS-102, 106 N, FSQ-106; Vixen 102; Williams Optics: ZS110 APO, ZenithStar 105 (with dew shield), ZenithStar 110(with dew shield), FLT 110 APO, Megrez 110\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAZ-1516\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e5 5\/8” (143mm) to 5 7\/8” (149mm)\u003c\/p\u003e\n\u003cp\u003eCelestron: C4.5, C5\/5i, FirstScope 114, NexStar 5\/5SE, NexStar 114, 130GT; Meade: ETX 125, 114 EQ; Orion: ShortTube 4.5, SkyQuest XT4.5, 127 Mak.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAZ-1517\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e5 7\/8” (149mm) to 6 1\/8” (156mm)\u003c\/p\u003e\n\u003cp\u003eMeade: LXD-55 AR-5, 5000 ED APO 127mm; TeleVue-127NP; Vixen 114\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAZ-1518\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e6 1\/8” (156mm) to 6 3\/8” (162mm)\u003c\/p\u003e\n\u003cp\u003eMeade 127 NT; Orion: SpaceProbe 130ST, StarSeeker 130, 130 EDFS; AstroPhysics: 125, 130; Bushnell Newtonian 5” Reflector; Intes Micro MN56\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAZ-1519\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e6 3\/4” (171mm) to 7” (178mm)\u003c\/p\u003e\n\u003cp\u003eCelestron: C-150 CR, C-150 HD; Meade 5” APO, DS2130; Orion: SpaceProbe 130, Sky Watcher 6\"; StellarVue: SV5 (with dew shield), SV125 (with dew shield); Takahashi FS-128; TOA-130 (with dew shield), TOA-150; Intes MK 67\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAZ-1520\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e7 1\/8” (181mm) to 7 3\/8” (187mm)\u003c\/p\u003e\n\u003cp\u003eAstroPhysics 155; Celestron: NexStar 6\/6SE, C6; Meade LXD 55 6\" S\/Newt; Orion: AstroView 6, SkyView Pro 6 \u0026amp; 6LT, SkyView Pro 3.6 CA, Skyview Deluxe 6 EQ, SkyQuest XT6; Vixen 150\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAZ-1521\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e7 5\/8” (194mm) to 7 7\/8” (199mm)\u003c\/p\u003e\n\u003cp\u003eMeade Starfinder, MTS SN6, 6600 6”; Orion: SkyView Pro 150 Mak., DSE; Intes MK 603\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAZ-1522\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e8” (203mm) to 8 1\/4” (210mm)\u003c\/p\u003e\n\u003cp\u003eMeade LXD-55 AR-6\", Meade 6\" ED APO; Takahashi FCT-150; Intes Micro Alter M603; Questar 7”; Takahashi: Mewlon-180; Orion 180 Mak.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAZ-1523\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e8 3\/8” (213mm) to 8 5\/8” (219mm)\u003c\/p\u003e\n\u003cp\u003eCelestron: Starhopper 6\"\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAZ-1524\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e8 13\/16” (224mm) to 9 1\/16” (230mm)\u003c\/p\u003e\n\u003cp\u003eCelestron 8” and Meade 8” Schmidt-Cassegrain; Celestron: C8, C8+, Celestar 8, NexStar 8\/8i\/8SE, CPC800, CGE-800; Meade 8”: 2080, LX5, LX6, Premier, LX10, LX50, LXD-55, LXD-75, LX200, LX200R, LX200 GPS, LX90 GPS 8”; Discovery DHQ 6” Dob; Takahashi: Epsilon-180ED; Vixen: R200SS, VC200L, VMC200L, VMC260L\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAZ-1525\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e9 1\/8” (232mm) to 9 3\/8” (238mm)\u003c\/p\u003e\n\u003cp\u003eCelestron: C8 \/ Newt.; Newstar 8” Dobsonians; Orion: SkyQuest XT8, Atlas 8, SkyView Pro 8, Orion Sky Watcher\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAZ-1526\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e9 3\/8” (238mm) to 9 5\/8” (244mm)\u003c\/p\u003e\n\u003cp\u003eMeade Starfinder 8; Orion 8 DSE\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAZ-1527\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e9 5\/8” (244mm) to 9 7\/8” (251mm)\u003c\/p\u003e\n\u003cp\u003eMeade LXD-55 8\" S\/Newt, Meade 7” APO; Takahashi 212\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAZ-1528\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e10 1\/8” ( 257mm) to 10 3\/8” (264mm)\u003c\/p\u003e\n\u003cp\u003eCoulter 8\"; Skywatcher 8” Reflector; Takahashi Epsilon 180 ED\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAZ-1529\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e10 3\/8” (264mm) to 10 5\/8” (270mm)\u003c\/p\u003e\n\u003cp\u003eCelestron 9 1\/4 S-C, Celestron StarHopper 8\" Dobsonian\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAZ-1530\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e11 1\/8” (283mm) to 11 3\/8” (289mm)\u003c\/p\u003e\n\u003cp\u003eCelestron 10\" Newt; Orion SkyWatcher 10\"\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAZ-1531\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e11 5\/8” (295mm) to 11 7\/8” (302mm)\u003c\/p\u003e\n\u003cp\u003eFits all Meade 10\" Schmidt-Cassegrain’s: Meade 10\" LX200 Series, Meade LXD-55 10\" S\/ NEWT, Meade LX90 GPS 10”, Meade RCX 400 10”\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAZ-1532\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e12 1\/8” (308mm) to 12 3\/8” (314mm)\u003c\/p\u003e\n\u003cp\u003eCelestron: C11 SCT, StarHopper 10\" Dobsonian; Meade 10” Lightbridge Dobsonian; Orion: SkyQuest XT10, Atlas 10; OPT’s Starhunter 10” Dobsonian\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAZ-1533\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e12 5\/8” (321mm) to 12 7\/8” (327mm)\u003c\/p\u003e\n\u003cp\u003eMeade Starfinder 10; Coulter 10”; Takahashi: FRC300, Mewlon 300\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAZ-1534\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e13 3\/8” (340mm) to 13 5\/8” (346mm)\u003c\/p\u003e\n\u003cp\u003eMeade 12\" Schmidt-Cassegrain’s: LX200 Series 12”, LX90 GPS 12”, RCX 400 12”\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAZ-1535\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e14 7\/8” (378mm) to 15 1\/8” (384mm)\u003c\/p\u003e\n\u003cp\u003eOrion 12.5\"; 12” Dobs Zhumell\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAZ-1536\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e15 3\/8” (391mm) to 15 5\/8” (397mm)\u003c\/p\u003e\n\u003cp\u003eCelestron 14” SCT\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAZ-1537\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e15 5\/8” (397mm) to 15 7\/8” (403mm)\u003c\/p\u003e\n\u003cp\u003eMeade 14\" Schmidt-Cassegrain’s: 14” LX200 Series , RCX 400 14”\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"background-color: #ffffff; color: #23618b;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cp\u003eAstrozap Full Aperture Solar Filter\u003c\/p\u003e\n\u003ch3\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\n\u003cp\u003eLimited One Year Warranty\u003c\/p\u003e","brand":"Astrozap","offers":[{"title":"391-397mm (AZ-1536)","offer_id":43504713072869,"sku":"AZ-1536","price":270.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/astrozap-full-aperture-solar-filter-astronomy-plus_51f9e87c-4301-4128-8689-d42165ecbd7a.jpg?v=1690484199"},{"product_id":"tele-vue-bandmate-nebustar-type-ii-filter","title":"Tele Vue Bandmate Nebustar Type II Filter","description":"\u003ch2\u003eTele Vue Bandmate Nebustar Type II Filter\u003c\/h2\u003e\n\u003cp\u003eThe Tele Vue Bandmate Nebustar Type II Filter is a unique narrowband design specifically for Tele Vue. It’s available in 1.25″ or 2″ mounted format. Unlike other UHC designs, Nebustar blocks red wavelengths normally passed by typical UHC filters. The design eliminates star bloat to produce sharper, more natural looking stars along with enhanced nebulosity. This is a great general-purpose nebula filter for scopes of any size. Astronomik is proud to deliver this exclusive filter through Tele Vue and wishes that customers “enjoy magnificent observing sessions with our most recent development for visual observers: The TeleVue Type 2 Nebustar.”\u003c\/p\u003e\n\u003ch4\u003eBackground\u003c\/h4\u003e\n\u003cp\u003eThe first thing you’ll notice is that these filters are produced for us in Germany by Astronomik. Tele Vue and Astronomik are two relatively small companies that adhere to the same philosophy. Do it better, or don’t do it at all; the products, customer, and night sky deserve it.\u003c\/p\u003e\n\u003cp\u003eDavid Nagler and Gerd Neumann had crossed paths at astronomy shows for years. Both have had their frustrations with the filter business. From passband to thread tolerances, the filter industry seems like the “wild west” of astronomical products. We had been looking to develop a long-term supplier of state-of-the-art, custom filters and approached Astronomik with the idea of reintroducing Tele Vue’s line of premium quality Bandmate filters; guaranteed to perform and fit, with uniformity beyond any competitive brand. Gerd and Eric of Astronomik were excited with the idea of a partnership with Tele Vue. “When we started into Amateur-Astronomy, Tele Vue already was a legendary brand known for its outstanding quality of their telescopes and eyepieces. Today we are proud to team up with them to share our knowledge and experience in filter design and production and bring the best filters possible to all astronomers worldwide.”\u003c\/p\u003e\n\u003cp\u003eThe distinction you’ll find with Bandmate filters is their consistency, achieved by keeping control of the manufacturing and quality control processes each company does so well. All the materials are sourced in Germany. Each filter is: optically tested by Tele Vue in high power-space to ensure no image degradation, tested by Astronomik on a spectrograph to ensure the coating meets design specifications, mechanically tested for fit, cosmetically inspected for pinholes, digs, and sleeks and serialized, all to insure customer satisfaction. All filters are backed with a 10-year warranty against manufacturing defects.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cdiv class=\"woocommerce-Tabs-panel woocommerce-Tabs-panel--local_1 panel entry-content\" id=\"tab-local_1\" role=\"tabpanel\" aria-labelledby=\"tab-title-local_1\"\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSize: 1.25″ mounted or 2″ mounted\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIn the Box\u003c\/span\u003e\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"woocommerce-Tabs-panel woocommerce-Tabs-panel--local_2 panel entry-content\" id=\"tab-local_2\" role=\"tabpanel\" aria-labelledby=\"tab-title-local_2\"\u003e\n\u003cp\u003e\u003cspan\u003eBandmate Nebustar Type II Filter\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eFilter Case\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eManuals \u0026amp; Warranty \u003c\/h3\u003e\n\u003cp\u003eTele Vue 10-Years Warranty\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/Tele-Vue-Bandmate-Filters-Transmission-Graph.pdf?v=1669922695\" target=\"_blank\"\u003eTele Vue Bandmate Filters Transmission Graph\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Tele Vue","offers":[{"title":"1.25\" mounted","offer_id":43732862468325,"sku":"TV-B2N-0125","price":204.0,"currency_code":"CAD","in_stock":true},{"title":"2\" mounted","offer_id":43732862501093,"sku":"TV-B2N-0200","price":450.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/tele-vue-bandmate-nebustar-type-ii-filter-astronomy-plus-1_eec400cf-7905-402d-ab9d-24d2759a3292.png?v=1690484202"},{"product_id":"astrozap-baader-solar-filter","title":"Astrozap Baader Film Solar Filter","description":"\u003ch2\u003eAstrozap Baader Solar Filter\u003c\/h2\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/howtomeasurethesizeen_480x480.png?v=1708015233\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"text\"\u003eWith the Astrozap Baader Solar Filter, the Sun appears in neutral white. Other films and some glass filters produce a blurry \u003c\/span\u003e\u003cspan class=\"text\"\u003ebluish or reddish Solar image, thereby cutting part of the spectrum. Especially with an orange sun, it is \u003c\/span\u003e\u003cspan class=\"text\"\u003every hard to see faculae regions which are visible predominantly in the blue wing of the spectrum.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"text\"\u003eDue to it's neutral color balance, AstroSolar enables the use of various color (or interference) filters \u003c\/span\u003e\u003cspan class=\"text\"\u003ewhich allows the observer to concentrate on certain spectral passbands for investigations of different layers within the solar \"atmosphere\".\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"text\"\u003eThe Astrozap Baader Solar Filter is essentially free from pinholes, since - other than with even the most expensive glass filters - it is coated on both sides, so that the chance of two pinholes overlapping each other is extremely faint. Pinholes do appear, but to 1 out of 10000 only in optical density 2.5! Baader AstroSolar™ safety film has been approved for eye safety by the National Bureau of Standards in Germany, the PTB. Unlike any other Solar Filter on the market, AstroSolar™ is CE-tested according to EG-Norm 89\/686 and EN 169\/92 ( notified body 0196). All processes connected to this product have been thoroughly tested. Coatings are inspected constantly for consistency to ensure your eye safety!\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"text\"\u003eBaader AstroSolar™ film Filter cell constructed from lightweight 18Ga. aluminum and powder coated white. Heavy duty threaded inserts and nylon thumbscrews insure a secure fit.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eIn the Box\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003eAstrozap Baader Solar Filter\u003cbr\u003e\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003eLimited One Year Warranty\u003c\/p\u003e","brand":"Astrozap","offers":[{"title":"90mm-100mm - AZ-1000","offer_id":43472360276197,"sku":"AZ-1000","price":99.0,"currency_code":"CAD","in_stock":true},{"title":"110mm-120mm - AZ-1001","offer_id":43472360341733,"sku":"AZ-1001","price":116.0,"currency_code":"CAD","in_stock":true},{"title":"120mm-130mm - AZ-1001-1","offer_id":43472360374501,"sku":"AZ-1001-1","price":116.0,"currency_code":"CAD","in_stock":true},{"title":"136mm-146mm - AZ-1002","offer_id":43472453075173,"sku":"AZ-1002","price":116.0,"currency_code":"CAD","in_stock":true},{"title":"145mm-155mm - AZ-1002-1","offer_id":43472453107941,"sku":"AZ-1002-1","price":116.0,"currency_code":"CAD","in_stock":true},{"title":"104mm-114mm - AZ-1003","offer_id":43472360308965,"sku":"AZ-1003","price":99.0,"currency_code":"CAD","in_stock":true},{"title":"225mm-235mm - AZ-1004","offer_id":43472453402853,"sku":"AZ-1004","price":183.0,"currency_code":"CAD","in_stock":true},{"title":"235mm-242mm - AZ-1004-1","offer_id":43472453435621,"sku":"AZ-1004-1","price":183.0,"currency_code":"CAD","in_stock":true},{"title":"259mm-269mm - AZ-1005","offer_id":43472453501157,"sku":"AZ-1005","price":202.0,"currency_code":"CAD","in_stock":true},{"title":"269mm-276mm - AZ-1005-1","offer_id":43472453533925,"sku":"AZ-1005-1","price":202.0,"currency_code":"CAD","in_stock":true},{"title":"288mm-298mm - AZ-1006","offer_id":43472453566693,"sku":"AZ-1006","price":202.0,"currency_code":"CAD","in_stock":true},{"title":"306mm-316mm - AZ-1007","offer_id":43472453632229,"sku":"AZ-1007","price":227.0,"currency_code":"CAD","in_stock":true},{"title":"315mm-325mm - AZ-1007-1","offer_id":43472453664997,"sku":"AZ-1007-1","price":227.0,"currency_code":"CAD","in_stock":true},{"title":"338mm-348mm - AZ-1008","offer_id":43472453697765,"sku":"AZ-1008","price":252.0,"currency_code":"CAD","in_stock":true},{"title":"347mm-357mm - AZ-1008-1","offer_id":43472453730533,"sku":"AZ-1008-1","price":252.0,"currency_code":"CAD","in_stock":true},{"title":"395mm-405mm - AZ-1009","offer_id":43472453763301,"sku":"AZ-1009","price":202.0,"currency_code":"CAD","in_stock":true},{"title":"250mm-260mm - AZ-1010","offer_id":43472453468389,"sku":"AZ-1010","price":183.0,"currency_code":"CAD","in_stock":true},{"title":"294mm-304mm - AZ-1011","offer_id":43472453599461,"sku":"AZ-1011","price":218.0,"currency_code":"CAD","in_stock":true},{"title":"155mm-165mm - AZ-1013","offer_id":43472453140709,"sku":"AZ-1013","price":133.0,"currency_code":"CAD","in_stock":true},{"title":"165mm-175mm - AZ-1013-1","offer_id":43472453173477,"sku":"AZ-1013-1","price":133.0,"currency_code":"CAD","in_stock":true},{"title":"193mm-204mm - AZ-1014","offer_id":43472453304549,"sku":"AZ-1014","price":149.0,"currency_code":"CAD","in_stock":true},{"title":"205mm-215mm - AZ-1014-1","offer_id":43472453337317,"sku":"AZ-1014-1","price":166.0,"currency_code":"CAD","in_stock":true},{"title":"215mm-225mm - AZ-1014-2","offer_id":43472453370085,"sku":"AZ-1014-2","price":166.0,"currency_code":"CAD","in_stock":true},{"title":"85mm-95mm - AZ-1015","offer_id":43472360243429,"sku":"AZ-1015","price":99.0,"currency_code":"CAD","in_stock":true},{"title":"174mm-184mm - AZ-1016","offer_id":43472453206245,"sku":"AZ-1016","price":150.0,"currency_code":"CAD","in_stock":true},{"title":"184mm-194mm - AZ-1016-1","offer_id":43472453271781,"sku":"AZ-1016-1","price":150.0,"currency_code":"CAD","in_stock":true},{"title":"178mm-188mm - AZ-1016-SE","offer_id":43472453239013,"sku":"AZ-1016-SE","price":166.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/astrozap-baader-solar-filter-astronomy-plus_4fec9b00-2314-4301-8495-30bff9501110.png?v=1690484203"},{"product_id":"tele-vue-bandmate-oiii-filter","title":"Tele Vue Bandmate OIII Filter","description":"\u003ch1\u003eTele Vue Bandmate OIII Filter\u003c\/h1\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe Tele Vue Bandmate OIII Filter passes light from doubly ionized oxygen atoms. As such, it is great for viewing planetary nebulae and supernovae remnants.It’s available in 1.25″ or 2″ mounted format.\u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003eBackground\u003c\/h4\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe first thing you’ll notice is that these filters are produced for us in Germany by Astronomik. Tele Vue and Astronomik are two relatively small companies that adhere to the same philosophy. Do it better, or don’t do it at all; the products, customer, and night sky deserve it.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eDavid Nagler and Gerd Neumann had crossed paths at astronomy shows for years. Both have had their frustrations with the filter business. From passband to thread tolerances, the filter industry seems like the “wild west” of astronomical products. We had been looking to develop a long-term supplier of state-of-the-art, custom filters and approached Astronomik with the idea of reintroducing Tele Vue’s line of premium quality Bandmate filters; guaranteed to perform and fit, with uniformity beyond any competitive brand. Gerd and Eric of Astronomik were excited with the idea of a partnership with Tele Vue. “When we started into Amateur-Astronomy, Tele Vue already was a legendary brand known for its outstanding quality of their telescopes and eyepieces. Today we are proud to team up with them to share our knowledge and experience in filter design and production and bring the best filters possible to all astronomers worldwide.”\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe distinction you’ll find with Bandmate filters is their consistency, achieved by keeping control of the manufacturing and quality control processes each company does so well. All the materials are sourced in Germany. Each filter is: optically tested by Tele Vue in high power-space to ensure no image degradation, tested by Astronomik on a spectrograph to ensure the coating meets design specifications, mechanically tested for fit, cosmetically inspected for pinholes, digs, and sleeks and serialized, all to insure customer satisfaction. All filters are backed with a 10-year warranty against manufacturing defects.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e \u003c\/p\u003e\n\u003cdiv aria-labelledby=\"tab-title-local_1\" role=\"tabpanel\" id=\"tab-local_1\" class=\"woocommerce-Tabs-panel woocommerce-Tabs-panel--local_1 panel entry-content\" data-mce-fragment=\"1\"\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan\u003eSize: 1.25″ mounted or 2″ mounted\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eIn the Box\u003c\/span\u003e\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv aria-labelledby=\"tab-title-local_2\" role=\"tabpanel\" id=\"tab-local_2\" class=\"woocommerce-Tabs-panel woocommerce-Tabs-panel--local_2 panel entry-content\" data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan\u003eBandmate OIII Filter\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eFilter Case\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eManuals \u0026amp; Warranty \u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003eTele Vue 10-Years Warranty\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/Tele-Vue-Bandmate-Filters-Transmission-Graph.pdf?v=1669922695\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eTele Vue Bandmate Filters Transmission Graph\u003c\/a\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e \u003c\/p\u003e\n\u003c\/div\u003e","brand":"Tele Vue","offers":[{"title":"1.25\" mounted","offer_id":43732876886245,"sku":"TV-B2O-0125","price":200.0,"currency_code":"CAD","in_stock":true},{"title":"2\" mounted","offer_id":43732876919013,"sku":"TV-B2O-0200","price":364.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/tele-vue-bandmate-oiii-filter-astronomy-plus-1_42c420ce-60a1-4111-9ba4-4961cda1ab62.png?v=1690484214"},{"product_id":"tele-vue-bandmate-h-beta-filter","title":"Tele Vue Bandmate H-Beta Filter","description":"\u003ch2\u003eTele Vue Bandmate H-Beta Filter\u003c\/h2\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe Tele Vue Bandmate H-Beta Filter passes the aqua colored hydrogen-beta emission lines found in the Horsehead, California, and other hydrogen emitting nebulae. It is effective for viewing objects that take up the entire field — even when using our wide-angle eyepieces. It’s available in 1.25″ or 2″ mounted format.\u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003eBackground\u003c\/h4\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe first thing you’ll notice is that these filters are produced for us in Germany by Astronomik. Tele Vue and Astronomik are two relatively small companies that adhere to the same philosophy. Do it better, or don’t do it at all; the products, customer, and night sky deserve it.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eDavid Nagler and Gerd Neumann had crossed paths at astronomy shows for years. Both have had their frustrations with the filter business. From passband to thread tolerances, the filter industry seems like the “wild west” of astronomical products. We had been looking to develop a long-term supplier of state-of-the-art, custom filters and approached Astronomik with the idea of reintroducing Tele Vue’s line of premium quality Bandmate filters; guaranteed to perform and fit, with uniformity beyond any competitive brand. Gerd and Eric of Astronomik were excited with the idea of a partnership with Tele Vue. “When we started into Amateur-Astronomy, Tele Vue already was a legendary brand known for its outstanding quality of their telescopes and eyepieces. Today we are proud to team up with them to share our knowledge and experience in filter design and production and bring the best filters possible to all astronomers worldwide.”\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe distinction you’ll find with Bandmate filters is their consistency, achieved by keeping control of the manufacturing and quality control processes each company does so well. All the materials are sourced in Germany. Each filter is: optically tested by Tele Vue in high power-space to ensure no image degradation, tested by Astronomik on a spectrograph to ensure the coating meets design specifications, mechanically tested for fit, cosmetically inspected for pinholes, digs, and sleeks and serialized, all to insure customer satisfaction. All filters are backed with a 10-year warranty against manufacturing defects.\u003c\/p\u003e\n\u003cdiv class=\"woocommerce-Tabs-panel woocommerce-Tabs-panel--local_1 panel entry-content\" id=\"tab-local_1\" role=\"tabpanel\" aria-labelledby=\"tab-title-local_1\"\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSize: 1.25″ mounted or 2″ mounted\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIn the Box\u003c\/span\u003e\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"woocommerce-Tabs-panel woocommerce-Tabs-panel--local_2 panel entry-content\" id=\"tab-local_2\" role=\"tabpanel\" aria-labelledby=\"tab-title-local_2\"\u003e\n\u003cp\u003e\u003cspan\u003eBandmate H-Beta Filter\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eFilter Case\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eManuals \u0026amp; Warranty \u003c\/h3\u003e\n\u003cp\u003eTele Vue 10-Years Warranty\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/Tele-Vue-Bandmate-Filters-Transmission-Graph.pdf?v=1669922695\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eTele Vue Bandmate Filters Transmission Graph\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e","brand":"Tele Vue","offers":[{"title":"1.25\" Mounted","offer_id":43732847362277,"sku":"TV-B2H-0125","price":200.0,"currency_code":"CAD","in_stock":true},{"title":"2\" Mounted","offer_id":43732847395045,"sku":"TV-B2H-0200","price":364.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/tele-vue-bandmate-h-beta-filter-astronomy-plus-1_e69b3cd0-06a4-4c9c-8edf-444b2f559993.png?v=1690484214"},{"product_id":"lunt-internal-double-stack-module-for-ls130tha-dsii-ls130tha","title":"Lunt Double Stack Filter for LS130MT \u0026 LS152THa Telescopes","description":"\u003ch2\u003eLunt Double Stack Filter for LS130MT \u0026amp; LS152THa Telescopes\u003c\/h2\u003e\n\u003cp\u003eDouble stacking provides a truly enhanced, high definition view of the Sun’s surface details. It lowers the bandpass of the system from \u0026lt;0.35 Angstroms to \u0026lt;0.22 Angstroms. This will significantly make the surface features on the Sun “pop”! The Lunt 130 mm and 152 mm can be internally double-stacked at the time of purchase or anytime thereafter and does not need to be returned to the factory for double-stacking.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eSubsequently, add the DSII internal double stack module to make it a double stack unit later. This will make it more affordable to purchase our best solar telescope and still have room for upgrades. Once you upgrade your Lunt LS130MT with the LFPT internal double stack module, you will be able to see the finer details on the Sun that were not previously visible.\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAdd an internal double-stacking module to a Lunt 130 mm or Lunt 152mmtelescope for a lowered bandpass of \u0026lt;0.35 Angstroms!\u003c\/li\u003e\n\u003cli\u003eThe LFPT includes a pressure tuner for true Doppler tuning.\u003c\/li\u003e\n\u003cli\u003eAdd it yourself to your own Lunt 130 mm or Lunt 152m mm Telescope, no trip back to the factory required!\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cp\u003eLunt Double Stack Filter for LS130MT \u0026amp; LS152THa Telescopes\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003eLunt 5-Year Warranty\u003c\/p\u003e","brand":"Lunt","offers":[{"title":"Double Stack for LS130MT","offer_id":44179557056741,"sku":"LS-DSII\/LFPT\/LS130MT","price":4193.0,"currency_code":"CAD","in_stock":true},{"title":"Double Stack for LS152THa","offer_id":44179557089509,"sku":"LS-DSII\/LFPT\/LS152THa","price":4193.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/Lunt-Double-Stack-Filter-LS130MT-LS152THa-Telescopes.webp?v=1777045472"},{"product_id":"lunt-internal-double-stack-module-for-ls80tha-ls80ha-pt-dsii","title":"Lunt Double Stack Filter for Lunt 80mm \u0026 100mm Universal Telescopes (DSII\/SFPTP)","description":"\u003ch2\u003eLunt Internal Double Stack Module for LS80THa\u003c\/h2\u003e\n\u003cp id=\"sfpt-internal-double-stack-module-for-lunt-80-mm-100-mm-universal-day-and-night-telescopes\"\u003e\u003cstrong\u003eSFPT – Internal Double Stack Module for Lunt 80 mm \u0026amp; 100 mm Universal Day and Night Telescopes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cstrong\u003eNow with \u003cspan\u003eNEW\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eIMPROVED\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eetalons!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cstrong\u003eOur latest double-stack etalons deliver up to a 40% improvement in performance, achieving ultra-narrow bandwidths down to ~0.27Å for sharper, more detailed views. Every unit is individually measured at 656.28nm using our precision scanning monochromator—so every specification is verified, not estimated.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eDouble stacking provides a truly enhanced, high definition view of the Sun’s surface details. Notably, it lowers the bandpass of the system from ~0.4Å Angstrom to\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e~0.27Å \u003c\/span\u003e Angstrom, which really makes the surface “pop”!\u003c\/p\u003e\n\u003cp\u003eThe Lunt 80 mm and 100mm Universal Telescopes can be internally double-stacked at the time of purchase or anytime thereafter. Furthermore, neither telescope module will need to be returned to the factory for double-stacking.\u003c\/p\u003e\n\u003cp\u003eYou can purchase the 80 mm or 100 mm single stack universal telescope initially and add the SFPT to make it a double stack unit later. This will make it more affordable to purchase our a new universal telescope and still have room for upgrades. Once you upgrade your Lunt Universal Telescope with the double stack unit, you will be able to see the finer details not previously visible.\u003c\/p\u003e\n\u003cp\u003eFind the latest news and photos of the Sun at\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.nasa.gov\/sun\"\u003eN\u003c\/a\u003e\u003ca href=\"https:\/\/www.nasa.gov\/sun\" rel=\"noopener\" target=\"_blank\"\u003eA\u003c\/a\u003e\u003ca href=\"https:\/\/www.nasa.gov\/sun\"\u003eSA\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eLunt Internal Double Stack Module \u003cbr\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003ch3\u003eWarranty \u0026amp; Manuals\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cp\u003eLunt 5-Year Warranty\u003c\/p\u003e","brand":"Lunt","offers":[{"title":"Default Title","offer_id":43125732901093,"sku":"LS-DSII\/SFPTP","price":2093.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/lunt-internal-double-stack-module-for-ls80tha-ls80haptdsii-astronomy-plus.webp?v=1690484342"},{"product_id":"daystar-energy-rejection-filter-for-refractor-erf","title":"Daystar Energy Rejection Filter for Refractor- ERF","description":"\u003ch2\u003eDaystar Energy Rejection Filter ERF for Refractor\u003c\/h2\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Arial,Helvetica,Geneva,Swiss,SunSans-Regular;\"\u003eThe Daystar Energy Rejection Filter for Refractor reduces the heat load on your filter assembly by absorbing or reflecting UV and\/or I light and transmitting light in the desired visual spectrum. These filters are sometimes Red or Yellow glass, or dielectric IR and UV, but pass light in the desired visual spectrum. The ERF can also serve as an aperture mask to accomplish a straight angle of incidence for light entering the filter.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv title=\"Page 1\" class=\"page\"\u003e\n\u003cdiv class=\"layoutArea\"\u003e\n\u003cdiv class=\"column\"\u003eTo prevent damage, we recommend using an Energy Rejection Filter on telescopes of 80mm aperture or more, or when tracking the Sun for long periods. This can be a UV\/IR cut filter mounted before the diagonal, or a full aperture red or yellow glass ERF mounted in front of the telescope.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3\u003e\u003c\/h3\u003e\n\u003ch3\u003eWhen to use a Front Mounted ERF\u003c\/h3\u003e\nTelescopes upon which we do not recommend UV\/IR cut filters:\n\u003cul\u003e\n\u003cli\u003eSome larger aperture (130mm and higher) and\/or all-day tracking applications where the Quark \/ Quantum are susceptible to overheating.\u003c\/li\u003e\n\u003cli\u003eSCT telescopes\u003c\/li\u003e\n\u003cli\u003ePetzval refractors (a concentrated beam will fall upon unknown coatings)\u003c\/li\u003e\n\u003cli\u003eCertain older oil spaced triplets prior to adoption of UV resistant oils.\u003c\/li\u003e\n\u003cli\u003eAny instrument for which the owner is not comfortable with the UV\/IR cut solution.\u003c\/li\u003e\n\u003c\/ul\u003e\nThese users should consider front mount energy rejection.  This is accomplished using a colored glass optical window before the objective or corrector plate. A refractor with an aperture of 80mm or less doesn't require energy rejection. This is because the amount of energy collected with 80mm of light just isn't enough to do damage to your system. 80mm is the size of the palm of your hand. Your hand doesn't spontaneously ignite in the sun - and it's not transparent like your refractor's objective is. All of your lenses are transparent and do not absorb energy.  A diagonal and the front elements of the QUARK are \u0026gt;99% reflective and doesn't either.  All of that energy is reflected back out the front of your telescope unmagnified.  Unless your telescope is made of paper, then it is not at-risk for damage with an aperture of 80mm or less.\u003c\/div\u003e\n\u003ch3\u003e\u003c\/h3\u003e\n\u003ch3\u003eWhich Front Mounted ERF Do I Need?\u003c\/h3\u003e\n\u003cspan style=\"font-family: Arial,Helvetica,Geneva,Swiss,SunSans-Regular;\"\u003eDayStar filter assemblies operate best at f\/30 and slower. Creating f\/30 configuration can be done easily with the proper ERF and\/or barlow. Higher resolution, larger aperture configurations use a barlow. \u003c\/span\u003e\n\u003cp style=\"text-align: center;\"\u003e$\\text{Useable Clear Aperture (ERF Size)}=\\frac{\\text{Scope Focal Length }\\times\\text{ Barlow Power}}{30}$\u003c\/p\u003e\n\u003ch3\u003eHow it Works?\u003c\/h3\u003e\n\u003cp\u003eColored glass ERF's must maintain an optical figure. This means they must be somewhat thick and must be polished to 1\/4 wave accuracy. This factor drives the cost of front mount Energy Rejection Filters. Colored glass ERF's block all Ultraviolet light and all visible light below the 500nm range.  Red glass blocks all visible light below 600nm (making it red).  We choose Yellow 500nm cut point glass in the event that an owner might later acquire a Sodium or Helium D3 line filter.  The same glass can be used for both types of filters, but Red glass can only be used for Hydrogen. Colored glass front mount ERF filters do not pass Calcium 393nm light.  Calcium owners must use UV\/IR cut filters only or no viable image will pass. All front mount Energy Rejection Filters must be fabricated to fit the front dew shield of the telescope.  Due to the thousands of designs and modifications of telescopes over the decades, the owner must measure his\/her own dew shield to determine the best inside diameter size offered which fits best over his exact instrument. \u003cu\u003e\u003cem\u003e\u003cstrong\u003eIT MUST BE NOTED THAT A UV\/IR CUT FILTER, NOR A FRONT MOUNT COLORED GLASS FILTER  IS NOT SUFFICIENT FILTRATION FOR SOLAR VIEWING ALONE.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/u\u003e\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eIn the Box\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eERF\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003eDaystar 1-Years Warranty\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Daystar","offers":[{"title":"80mm ERF Glass Cell \u0026 110mm ID Cap","offer_id":43666950455525,"sku":"DAY-E-110N80","price":770.0,"currency_code":"CAD","in_stock":true},{"title":"80mm ERF Glass Cell \u0026 120mm ID Cap","offer_id":43666950488293,"sku":"DAY-E-120N80","price":770.0,"currency_code":"CAD","in_stock":true},{"title":"100mm ERF Glass Cell \u0026 120mm ID Cap","offer_id":43666950521061,"sku":"DAY-E-120N100","price":973.0,"currency_code":"CAD","in_stock":true},{"title":"100mm ERF Glass Cell \u0026 130mm ID Cap","offer_id":43666950553829,"sku":"DAY-E-130N100","price":973.0,"currency_code":"CAD","in_stock":true},{"title":"100mm ERF Glass Cell \u0026 140mm ID Cap","offer_id":43666950586597,"sku":"DAY-E-140N100","price":973.0,"currency_code":"CAD","in_stock":true},{"title":"100mm ERF Glass Cell \u0026 150mm ID Cap","offer_id":43666950619365,"sku":"DAY-E-150N100","price":973.0,"currency_code":"CAD","in_stock":true},{"title":"130mm ERF Glass Cell \u0026 150mm ID Cap","offer_id":43666950652133,"sku":"DAY-E-150N130","price":1393.0,"currency_code":"CAD","in_stock":true},{"title":"130mm ERF Glass Cell \u0026 160mm ID Cap","offer_id":43666950684901,"sku":"DAY-E-160N130","price":1393.0,"currency_code":"CAD","in_stock":true},{"title":"130mm ERF Glass Cell \u0026 170mm ID Cap","offer_id":43666950717669,"sku":"DAY-E-170N130","price":1393.0,"currency_code":"CAD","in_stock":true},{"title":"130mm ERF Glass Cell \u0026 180mm ID Cap","offer_id":43666950750437,"sku":"DAY-E-180N130","price":1393.0,"currency_code":"CAD","in_stock":true},{"title":"130mm ERF Glass Cell \u0026 190mm ID Cap","offer_id":43666950783205,"sku":"DAY-E-190N130","price":1393.0,"currency_code":"CAD","in_stock":true},{"title":"150mm ERF Glass Cell \u0026 180mm ID Cap","offer_id":43666950881509,"sku":"DAY-E-180N150","price":2303.0,"currency_code":"CAD","in_stock":true},{"title":"150mm ERF Glass Cell \u0026 190mm ID Cap","offer_id":43666950914277,"sku":"DAY-E-190N150","price":2303.0,"currency_code":"CAD","in_stock":true},{"title":"150mm ERF Glass Cell \u0026 200mm ID Cap","offer_id":43666950947045,"sku":"DAY-E-200N150","price":2303.0,"currency_code":"CAD","in_stock":true},{"title":"150mm ERF Glass Cell \u0026 210mm ID Cap","offer_id":43666950979813,"sku":"DAY-E-210N150","price":2303.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/daystar-energy-rejection-filter-for-refractor-erf-astronomy-plus_96599091-76b0-412a-9e90-d92f9763657b.png?v=1690484514"},{"product_id":"daystar-energy-rejection-filter-for-sct-erf","title":"Daystar Energy Rejection Filter for SCT- ERF","description":"[latexpage]\n\u003ch2\u003eDaystar Energy Rejection Filter ERF for SCT\u003c\/h2\u003e\n\u003cspan style=\"font-family: Arial,Helvetica,Geneva,Swiss,SunSans-Regular;\"\u003eThe Daystar Energy Rejection Filter for SCT reduces the heat load on your filter assembly by absorbing or reflecting UV and\/or I light and transmitting light in the desired visual spectrum. These filters are sometimes Red or Yellow glass, or dielectric IR and UV, but pass light in the desired visual spectrum. The ERF can also serve as an aperture mask to accomplish a straight angle of incidence for light entering the filter.\u003c\/span\u003e\n\u003cdiv class=\"page\" title=\"Page 1\"\u003e\n\u003cdiv class=\"layoutArea\"\u003e\n\u003cdiv class=\"column\"\u003eTo prevent damage, we recommend using an Energy Rejection Filter on telescopes of 80mm aperture or more, or when tracking the Sun for long periods. This can be a UV\/IR cut filter mounted before the diagonal, or a full aperture red or yellow glass ERF mounted in front of the telescope.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3\u003eWhen to use a Front Mounted ERF\u003c\/h3\u003e\nTelescopes upon which we do not recommend UV\/IR cut filters:\n\u003cul\u003e\n\u003cli\u003eSome larger aperture (130mm and higher) and\/or all-day tracking applications where the Quark \/ Quantum are susceptible to overheating.\u003c\/li\u003e\n\u003cli\u003eSCT telescopes\u003c\/li\u003e\n\u003cli\u003ePetzval refractors (a concentrated beam will fall upon unknown coatings)\u003c\/li\u003e\n\u003cli\u003eCertain older oil spaced triplets prior to adoption of UV resistant oils.\u003c\/li\u003e\n\u003cli\u003eAny instrument for which the owner is not comfortable with the UV\/IR cut solution.\u003c\/li\u003e\n\u003c\/ul\u003e\nThese users should consider front mount energy rejection.  This is accomplished using a colored glass optical window before the objective or corrector plate.\u003c\/div\u003e\n\u003ch3\u003eWhich Front Mounted ERF Do I Need?\u003c\/h3\u003e\n\u003cspan style=\"font-family: Arial,Helvetica,Geneva,Swiss,SunSans-Regular;\"\u003eDayStar filter assemblies operate best at f\/30 and slower. Creating f\/30 configuration can be done easily with the proper ERF and\/or barlow. Higher resolution, larger aperture configurations use a barlow. \u003c\/span\u003e\n\u003cp style=\"text-align: center;\"\u003e$text{Useable Clear Aperture (ERF Size)}=frac{text{Scope Focal Length }timestext{ Barlow Power}}{30}$\u003c\/p\u003e\n\u003ch3\u003eHow it Works?\u003c\/h3\u003e\n\u003cp\u003eColored glass ERF's must maintain an optical figure. This means they must be somewhat thick and must be polished to 1\/4 wave accuracy. This factor drives the cost of front mount Energy Rejection Filters. Colored glass ERF's block all Ultraviolet light and all visible light below the 500nm range.  Red glass blocks all visible light below 600nm (making it red).  We choose Yellow 500nm cut point glass in the event that an owner might later acquire a Sodium or Helium D3 line filter.  The same glass can be used for both types of filters, but Red glass can only be used for Hydrogen. Colored glass front mount ERF filters do not pass Calcium 393nm light.  Calcium owners must use UV\/IR cut filters only or no viable image will pass. All front mount Energy Rejection Filters must be fabricated to fit the front dew shield of the telescope.  Due to the thousands of designs and modifications of telescopes over the decades, the owner must measure his\/her own dew shield to determine the best inside diameter size offered which fits best over his exact instrument. \u003cu\u003e\u003cem\u003e\u003cstrong\u003eIT MUST BE NOTED THAT A UV\/IR CUT FILTER, NOR A FRONT MOUNT COLORED GLASS FILTER IS NOT SUFFICIENT FILTRATION FOR SOLAR VIEWING ALONE.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/u\u003e\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eIn the Box\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan mce-data-marked=\"1\"\u003eERF Filter\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003eDaystar 1-Years Warranty\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Daystar","offers":[{"title":"63mm ERF Glass (Off-Axis) Cell \u0026 244mm ID Cap","offer_id":43666980372709,"sku":"DAY-E-244F63","price":770.0,"currency_code":"CAD","in_stock":true},{"title":"80mm ERF Glass (Off-Axis) Cell \u0026 281mm ID Cap","offer_id":43666980405477,"sku":"DAY-E-281F80","price":770.0,"currency_code":"CAD","in_stock":true},{"title":"80mm ERF Glass (Off-Axis) Cell \u0026 311mm ID Cap","offer_id":43666980438245,"sku":"DAY-E-311F80","price":770.0,"currency_code":"CAD","in_stock":true},{"title":"90mm ERF Glass (Off-Axis) Cell \u0026 311mm ID Cap","offer_id":43666980471013,"sku":"DAY-E-325F90","price":973.0,"currency_code":"CAD","in_stock":true},{"title":"100mm ERF Glass (Off-Axis) Cell \u0026 356mm ID Cap","offer_id":43666980503781,"sku":"DAY-E-356F100","price":1253.0,"currency_code":"CAD","in_stock":true},{"title":"115mm ERF Glass (Off-Axis) Cell \u0026 410mm ID Cap","offer_id":43666980536549,"sku":"DAY-E-410F115","price":1673.0,"currency_code":"CAD","in_stock":true},{"title":"125mm ERF Glass (Off-Axis) Cell \u0026 460mm ID Cap","offer_id":43666980569317,"sku":"DAY-E-460F125","price":1673.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/daystar-energy-rejection-filter-for-sct-erf-astronomy-plus_b707b1e1-378f-4579-9ece-4ed4a1b2f20a.png?v=1690484513"},{"product_id":"daystar-uv-ir-cut-2-dsiuv2","title":"Daystar UV\/IR Cut 2\" (DSIUV2)","description":"\u003ch2\u003eDaystar UV\/IR Cut 2\"\u003c\/h2\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eThe Daystar UV\/IR Cut 2″ reduces the heat load on your filter assembly by absorbing or reflecting UV and\/or I light and transmitting light in the desired visual spectrum. \u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv class=\"page\" title=\"Page 1\" data-mce-fragment=\"1\"\u003e\n\u003cdiv class=\"layoutArea\" data-mce-fragment=\"1\"\u003e\n\u003cdiv class=\"column\" data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003eTo prevent damage, we recommend using an Energy Rejection Filter on telescopes of 80mm aperture or more, or when tracking the Sun for long periods. This can be a UV\/IR cut filter mounted before the diagonal, or a full aperture red or yellow glass ERF mounted in front of the telescope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWhen to use a Front Mounted ERF\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003eTelescopes upon which we do not recommend UV\/IR cut filters:\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eSome larger aperture (130mm and higher) and\/or all-day tracking applications where the Quark \/ Quantum are susceptible to overheating.\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eSCT telescopes\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003ePetzval refractors (a concentrated beam will fall upon unknown coatings)\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eCertain older oil spaced triplets prior to adoption of UV resistant oils.\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAny instrument for which the owner is not comfortable with the UV\/IR cut solution.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThese users should consider front mount energy rejection.  This is accomplished using a colored glass optical window before the objective or corrector plate.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eA refractor with an aperture of 80mm or less doesn’t require energy rejection.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThis is because the amount of energy collected with 80mm of light just isn’t enough to do damage to your system. 80mm is the size of the palm of your hand.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eYour hand doesn’t spontaneously ignite in the sun – and it’s not transparent like your refractor’s objective is.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eAll of your lenses are transparent and do not absorb energy.  A diagonal and the front elements of the QUARK are \u0026gt;99% reflective and doesn’t either.  All of that energy is reflected back out the front of your telescope unmagnified.  Unless your telescope is made of paper, then it is not at-risk for damage with an aperture of 80mm or less.\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan\u003eThread: M48x0.75 (2″)\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eIn the Box\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan\u003e2″ UV\/IR Cut Filter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan\u003eFilter Box\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003eDaystar 1-Years Warranty\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cbr\u003e","brand":"Daystar","offers":[{"title":"Default Title","offer_id":43125748465893,"sku":"DAY-DSIUV2","price":175.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/daystar-uvir-cut-2-dsiuv2-astronomy-plus_f2db9bfc-2f06-416f-957c-9d8e040b87e2.jpg?v=1690484517"},{"product_id":"idas-nb1-nebula-booster-filter-h-alpha-h-beta-oiii","title":"IDAS NB1 Nebula Booster Filter H-alpha, H-beta \u0026 OIII","description":"\u003ch2\u003eIDAS NB1 Nebula Booster Filter H-alpha, H-beta \u0026amp; OIII\u003c\/h2\u003e\nThe IDAS NB1 Nebula Booster Filter is a triple line-pass filter (H-alpha, H-beta \u0026amp; OIII) which can be used with one-shot color (OSC) cameras such as DSLR's or astronomical OSC cameras. Passing the red Hα+NII and the green-blue Hβ+OIII lines, the NB1 filter enhances the contrast of emission line nebulae without the time-consuming use of single-band filters. IDAS NB Filters are designed to enhance the contrast of emission nebula, yet accommodate the filter spectral shift*when used with modern fast optical systems. All interference filters are subject to a bandpass spectral shift which depends on the angle of incidence of the incoming light. IDAS NB filters are designed to accommodate the spectral shift of modern fast optical systems. When placed in front of an optical system, the spectral shift is determined by the focal length of the optics and the size of the imaging sensor. For an APS-C sensor, up to a 50mm focal length can be accommodated. For a full-frame sized sensor, up to an 80mm focal length can be used. For filters placed between the optical system and imaging sensor, the situation is more complex. IDAS NB filters are designed with modern fast optics in mind and can accommodate an angle of incidence of up to 14°.\n\u003ch4\u003e\u003c\/h4\u003e\n\u003ch4\u003eFeatures\u003cbr\u003e\n\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eIdeal flat-top and moderate bandpass\u003c\/li\u003e\n\u003cli\u003eExcellent in-band transmission\u003c\/li\u003e\n\u003cli\u003eExtremely steep bandpass edges minimize internal reflections\u003c\/li\u003e\n\u003cli\u003eNear IR (NIR) is blocked up to 1100nm\u003c\/li\u003e\n\u003cli\u003eAvailable in 52mm and 48mm sizes\u003c\/li\u003e\n\u003cli\u003e2.5mm thickness (parfocal with other IDAS LPS filters)\u003c\/li\u003e\n\u003cli\u003eIDAS-proprietary IGAD\/MBT\/UFPquality\u003c\/li\u003e\n\u003cli\u003eMade in Japan\u003c\/li\u003e\n\u003c\/ul\u003e\nMore on other members of the NB filter family...\n\u003ctable cellspacing=\"0\" cellpadding=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003eEmission Lines\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003eNB1\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003eTriple - Hβ+OIII, Hα\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003eNB2\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003eDual - OIII, Hα\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003eNB3\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003eDual - OIII, SII\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003c\/h3\u003e\n\u003ch4\u003eIDAS Filter Technology\u003c\/h4\u003e\nA chain is only as good as its weakest link. This applies as well to an optical system such as a telescope\/filter\/imager system. With this in mind, IDAS filters are manufactured using unique technologies that result in quality that meets or exceeds that of the rest of your optical imaging system:\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eIGAD (Ion-Gun Assist Deposition)\u003c\/b\u003e This coating technology was originally developed for the optical communications field where long-term stability (\u0026gt;25 years) over harsh field conditions is required.IDAS is the first manufacturer to apply this technology to astronomical filters. This results in superior filters with robust coatings and long-term spectral stability even under temperature and humidity extremes. This stability is especially important for bandpass curves with steep slopes such as H-alpha, LPS filters, and other narrow bandpass filters. IGAD filters virtually eliminate bandpass shifts from the +\/-3 or 4nm typical of standard coating filters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMBT (Multi Band-pass Technology)\u003c\/b\u003e This is technology originally developed for biomedical microscopes, but improved by IDAS by combining it the IGAD hard-coating technology described above. The excellent filter responses possible with this technology allows IDAS to create very complicated filters for astronomical use such as the unique LPS filter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eUFP (Ultra Fine Polish) Finishing\u003c\/b\u003e IDAS filters are polished twice as long as is typical for optical glass. In combination with the use of high-quality substrate glass, no scratches, bubbles, or other defects are visible even under microscopic inspection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003ch3\u003eIn the Box\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNB1 Filter\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eManual \u0026amp; Warranty\u003c\/h3\u003e\n\u003cp\u003eIDAS 3-Year Warranty\u003c\/p\u003e","brand":"IDAS","offers":[{"title":"48mm mounted (2mm thickness)","offer_id":45659500839141,"sku":"IDA-NB1-48ST2","price":245.0,"currency_code":"CAD","in_stock":true},{"title":"ZWO Cameras","offer_id":43673497665765,"sku":"IDA-NB1-ZF","price":245.0,"currency_code":"CAD","in_stock":true},{"title":"DS for use with IDAS AD42-DSS","offer_id":47818781491429,"sku":"IDA-NB1-DS","price":297.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/products\/IDAS-NB1-Nebula-Booster-Filter-1.webp?v=1668192318"},{"product_id":"idas-heuib-ii-h-alpha-enhanced-uv-ir-cut-filter","title":"IDAS HEUIB-II H-alpha Enhanced UV\/IR Cut Filter","description":"\u003ch2\u003eIDAS HEUIB-II H-alpha Enhanced UV\/IR Cut Filter\u003c\/h2\u003e\n\u003cdiv\u003eThe IDAS HEUIB-II (\u003cstrong\u003eH\u003c\/strong\u003e-α \u003cstrong\u003eE\u003c\/strong\u003enhanced \u003cstrong\u003eU\u003c\/strong\u003eV \u003cstrong\u003eI\u003c\/strong\u003eR \u003cstrong\u003eB\u003c\/strong\u003elocking) filter is designed for enhanced spectrum DSLR's and one-shot color CCD astronomical cameras.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eBesides removing the IR and UV ends of the spectrum which are often out of focus in refractive optics, it isolates the common H-alpha line relative to the surrounding extreme red end of the spectrum, making it easy to bring out the faint H-alpha emission nebulosity of astronomical photos, yet retain the background color balance of broadband photos. Some comparison shots taken with the enhanced Canon 6DH (standard Canon UV\/IR blocking filter vs. HEUIB-II filter) show a clear difference both in background sky color balance and contrast of H-alpha nebulosity in the extremely faint object IC1396. Note the good background color balance as shown in the histograms of the individual color channels of the HEUIB-II filtered image. \u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cimg style=\"float: none;\" height=\"252\" width=\"445\" src=\"https:\/\/www.sciencecenter.net\/hutech\/idas\/heuib-2\/heuib-ii-s.jpg\" alt=\"IDAS HEUIB-II filter bandpass plot\"\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003eThe HEUIB-II filter also returns normal daylight color balance to spectrum-enhanced cameras as can be seen in this photo at right taken with normal DSLR auto-white-balance (AWB).\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch4\u003eIDAS Filter Technology\u003c\/h4\u003e\n\u003cp\u003eA chain is only as good as its weakest link. This applies as well to an optical system such as a telescope\/filter\/imager system. With this in mind, IDAS filters are manufactured using unique technologies that result in quality that meets or exceeds that of the rest of your optical imaging system:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eIGAD (Ion-Gun Assist Deposition)\u003c\/b\u003e This coating technology was originally developed for the optical communications field where long-term stability (\u0026gt;25 years) over harsh field conditions is required. IDAS is the first manufacturer to apply this technology to astronomical filters. This results in superior filters with robust coatings and long-term spectral stability even under temperature and humidity extremes. This stability is especially important for bandpass curves with steep slopes such as H-alpha, LPS filters, and other narrow bandpass filters. IGAD filters virtually eliminate bandpass shifts from the +\/-3 or 4nm typical of standard coating filters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMBT (Multi Band-pass Technology)\u003c\/b\u003e This is technology originally developed for biomedical microscopes, but improved by IDAS by combining it the IGAD hard-coating technology described above. The excellent filter responses possible with this technology allows IDAS to create very complicated filters for astronomical use such as the unique LPS filter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eUFP (Ultra Fine Polish) Finishing\u003c\/b\u003e IDAS filters are polished twice as long as is typical for optical glass. In combination with the use of high-quality substrate glass, no scratches, bubbles, or other defects are visible even under microscopic inspection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eAdditional Features:\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eIdeal precision prime focus T-Adapter for your astro imaging\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSCA Provides 360 deg. rubber square rings contact for the most secure and reliable adaption in your focuser\u003c\/li\u003e\n\u003cli\u003eSCA Brings your Camera to the Closest Optical Axis in the Drawtube\/Visual back for BEST Imaging Result\u003c\/li\u003e\n\u003cli\u003eSCA Eliminates Drawtube\/Visual Back Slop\u003c\/li\u003e\n\u003cli\u003eSCA Eliminates unstable locking from thumbscrew or unified compression ring\u003c\/li\u003e\n\u003cli\u003eSCA Accepts the Imperfection of a Drawtube\/Visual Back\u003c\/li\u003e\n\u003cli\u003eShort SCA Profile Prevents Oscillation\u003c\/li\u003e\n\u003cli\u003eSCA Damps Vibration\u003c\/li\u003e\n\u003cli\u003eSCA Accepts Filter Thread device.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specification\u003cbr\u003e\n\u003c\/h3\u003e\n\u003ctable border=\"0\" cellspacing=\"0\"\u003e\n\u003ccolgroup width=\"174\"\u003e\u003c\/colgroup\u003e \u003ccolgroup width=\"199\"\u003e\u003c\/colgroup\u003e \u003ccolgroup width=\"464\"\u003e\u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\" align=\"center\" height=\"18\"\u003e\u003cb\u003e\u003cspan style=\"color: #000000;\"\u003eType\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\" align=\"center\"\u003e\u003cb\u003e\u003cspan style=\"color: #000000;\"\u003eModel\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\" align=\"center\"\u003e\u003cb\u003e\u003cspan style=\"color: #000000;\"\u003eUse \u0026amp; Thickness\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\" align=\"center\" height=\"33\"\u003e\u003cspan style=\"color: #000000;\"\u003e\u003ca href=\"https:\/\/idas.uno\/space\/en\/IDAS\/frames\/m48.htm\"\u003eM48\u003c\/a\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\" align=\"center\"\u003e\u003cspan style=\"color: #000000;\"\u003eHEUIB-II 48S \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\" align=\"center\"\u003e\u003cspan style=\"color: #000000;\"\u003eM48mm P0.75mm, substrate thickness 2.5mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\" align=\"center\" height=\"33\"\u003e\u003cspan style=\"color: #000000;\"\u003e\u003ca href=\"https:\/\/idas.uno\/space\/en\/IDAS\/frames\/m48.htm\"\u003eM48\u003c\/a\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\" align=\"center\"\u003e\u003cspan style=\"color: #000000;\"\u003eHEUIB-II 48ST2 \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\" align=\"center\"\u003e\u003cspan style=\"color: #000000;\"\u003eM48mm P0.75mm, substrate thickness 2.0mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\" align=\"center\" height=\"33\"\u003e\u003cspan style=\"color: #000000;\"\u003e\u003ca href=\"https:\/\/idas.uno\/space\/en\/IDAS\/frames\/m52.htm\"\u003eM52\u003c\/a\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\" align=\"center\"\u003e\u003cspan style=\"color: #000000;\"\u003eHEUIB-II 52ST2 \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\" align=\"center\"\u003e\u003cspan style=\"color: #000000;\"\u003eM52mm P0.75mm, substrate thickness 2.0mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\" align=\"center\" height=\"18\"\u003e\u003cspan style=\"color: #000000;\"\u003eDi2\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\" align=\"center\"\u003e\u003cspan style=\"color: #000000;\"\u003eHEUIB-II Di2 \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\" align=\"center\"\u003e\u003cspan style=\"color: #000000;\"\u003edrops in AD19.4 drop-in mount adapter\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\" align=\"center\" height=\"33\"\u003e\u003cspan style=\"color: #000000;\"\u003eZF\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\" align=\"center\"\u003e\u003cspan style=\"color: #000000;\"\u003eHEUIB-II DRE \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\" align=\"center\"\u003e\u003cspan style=\"color: #000000;\"\u003efor use with ZWO cams (fb 6.5mm) and also IDAS AD19.4 drop-in filter mount\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\" align=\"center\" height=\"62\"\u003e\u003cspan style=\"color: #000000;\"\u003eDRE\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\" align=\"center\"\u003e\u003cspan style=\"color: #000000;\"\u003eHEUIB-II ZF \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\" align=\"center\"\u003e\u003cspan style=\"color: #000000;\"\u003efor Canon EF-EOSR drop-in mount adapter \u0026amp; Meike MK-EFTR-C (EF-R) \u0026amp; MK-EFTE-C (EF-E) drop-in mount adapters - Details at:\u003ca href=\"https:\/\/idas.uno\/space\/en\/support\/DRE-manual-en.pdf\"\u003e IDAS DRE Filter\u003c\/a\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eIn the Box\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIdas HEUIB-II Filter at selected size :\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eM48 S\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eM48 ST2\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eM52\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDi2\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eZF\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eDRE\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eManual \u0026amp; Warranty\u003c\/h3\u003e\n\u003cp\u003eIDAS 3-Year Warranty\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e","brand":"IDAS","offers":[{"title":"48mm (2 mm thickness)","offer_id":43673215959269,"sku":"IDA-HEUIBII-48ST2","price":245.0,"currency_code":"CAD","in_stock":true},{"title":"52mm (2 mm thickness)","offer_id":43673216024805,"sku":"IDA-HEUIBII-52ST2","price":277.0,"currency_code":"CAD","in_stock":true},{"title":"Di2 drop in filter","offer_id":43673215992037,"sku":"IDA-HEUIBII-Di2","price":277.0,"currency_code":"CAD","in_stock":true},{"title":"DRT for EF-EOSR","offer_id":43673216057573,"sku":"IDA-HEUIBII-DRT","price":347.0,"currency_code":"CAD","in_stock":true},{"title":"ZF for ZWO Cameras","offer_id":43673216090341,"sku":"IDA-HEUIBII-ZF","price":245.0,"currency_code":"CAD","in_stock":true},{"title":"DZ for use with ZWO cams","offer_id":47817048162533,"sku":"IDA-HEUIBII-DZ","price":297.0,"currency_code":"CAD","in_stock":true},{"title":"DS for use with IDAS AD42-DS","offer_id":47817048621285,"sku":"IDA-HEUIBII-DS","price":297.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/idas-heuib-ii-h-alpha-enhanced-uvir-cut-filter-astronomy-plus.webp?v=1690484525"},{"product_id":"astronomik-cls-filter","title":"Astronomik CLS Filter","description":"\u003ch2\u003eAstronomik CLS Filter\u003c\/h2\u003e\n\u003cp\u003eThe Astronomik CLS Filter is a budget filter for visual observation, Black \u0026amp; White photography and CCD photographs of nebulae, galaxies and star clusters with astronomical instruments of any size. The Astronomik CLS Filter blocks the light of the spectral lines of mercury and sodium-vapor lamps and lets the largest part of the visible light and H-alpha emissions pass. All the important emission lines, as well as the spectral region that the very well dark adapted eye can see, can pass through the filter.\u003c\/p\u003e\n\u003ch3\u003eMain use\u003c\/h3\u003e\n\u003cp\u003eThe filters are optimized for use with aperture ratios from 1:3 to 1:15. Transmission losses and chromatic distortions, which are problems with other filters, only appear with Astronomik filters when extremely bright aperture ratios of 1:2 and more are used. The CLS filter is suitable for use with telescopes of all aperture sizes.\u003c\/p\u003e\n\u003ch3\u003eSuitability\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eVisual observation (dark skies): Good, to reduce light pollution by mercury-vapour lamps (streetlight)\u003c\/li\u003e\n\u003cli\u003eVisual observation (urban skies): Good, an UHC-E or UHC filter is more suitable\u003c\/li\u003e\n\u003cli\u003eFilm photography: Very good, colour balance is near perfect\u003c\/li\u003e\n\u003cli\u003eCCD photography: Good, when used with an additional IR-block-filter\u003c\/li\u003e\n\u003cli\u003eDSLR photography (original): Good, colour balance shifted but contrast enhanced\u003c\/li\u003e\n\u003cli\u003eDSLR photography (astro modified): Very good, colour balance is near perfect\u003c\/li\u003e\n\u003cli\u003eDSLR photography (MC modified): Good, when used with an additional IR-block-filter\u003c\/li\u003e\n\u003cli\u003eWebcam \/ Video (Planets): Unsuitable\u003c\/li\u003e\n\u003cli\u003eWebcam \/ Video (Deep Sky): Very good, if light pollution is a big problem\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe table gives you a short Overview about the suitability of our filters for various applications: \u003cstrong\u003eLegend\u003c\/strong\u003e ++ The filter is excellent for this application, the dramatic better image! + The filter is good for this application, the much better image! o The filter is suitable for this application, the slightly better image! - The filter is usable for this application. -- The filter is not suitable for this application. \u003c\/p\u003e\n\u003cdiv class=\"basic ui-accordion selected\" id=\"list1b\"\u003e\n\u003ch3\u003eHow to Read the Chart\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThe \u003cb\u003ehorizontal axis\u003c\/b\u003e is the \u003cb\u003eWavelength in Nanometers\u003c\/b\u003e (nm). 400nm is deep blue, at 520nm the human eye senses green and at 600nm red. At 656nm is the famous \"H-Alpha\" emission line of hydrogen.\u003c\/li\u003e\n\u003cli\u003eThe \u003cb\u003etransmission in %\u003c\/b\u003e is plotted on the \u003cb\u003evertical axis\u003c\/b\u003e.\u003c\/li\u003e\n\u003cli\u003eThe \u003cspan style=\"color: red;\"\u003ered\u003c\/span\u003e line shows the \u003cb\u003etransmission of the filter\u003c\/b\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eVisual filters\u003c\/b\u003e: The \u003cb\u003egrey\u003c\/b\u003e line in the background shows the relative sensitivity of the human eye at night. The maximum is at ~510nm and drops to longer and shorter wavelengths. You can easily see, that you can´t see anything of the H-alpha line at night (even if you can during daylight!) The sensitivity at 656nm is 0% at night!\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePhotographic filters\u003c\/b\u003e: The grey line in the background shows the sensitivity of a typical CCD sensor.\u003c\/li\u003e\n\u003cli\u003eThe most important \u003cb\u003eartifical emission\u003c\/b\u003e lines are shown in \u003cspan style=\"color: orange;\"\u003eorange\u003c\/span\u003e. The artifical light pollution is dominated by see mercury (Hg) and sodium (Na), which are used in nearly all streetlights.\u003c\/li\u003e\n\u003cli\u003eThe most important \u003cb\u003eemission lines from nebulas\u003c\/b\u003e are shown in \u003cspan style=\"color: green;\"\u003egreen\u003c\/span\u003e. The most important lines are from ionized Hydrogen (H-alpha and H-beta) and double ionized oyxgen (OIII).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cspan style=\"color: orange;\"\u003eThe major emission lines of artifical light pollution: | Hg 435,8nm | Hg 546,1nm | Hg 577,0nm | Hg 578,1nm | | Na 589,0nm | Na 589,6nm | Na 615,4nm | Na 616,1nm | \u003c\/span\u003e \u003cspan style=\"color: green;\"\u003eThe major emission lines of nebulas: H-β 486,1nm | OIII 495,9nm | OIII 500,7nm | H-α 656,3nm\u003c\/span\u003e\n\u003c\/div\u003e\n\u003ch3\u003eQuality Characteristics of Astronomik Filters\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuperior Substrate: \u003c\/strong\u003eAstronomik filters consist of a precision polished substrate on which the actual filter, in the form of very thin (dichroic) interference layers, is applied. Because of these high quality measures Astronomik filters will in no way reduce the performance of your optical system. And contrary to common experience with other manufacturers´ filters, with Astronomik filters stars remain fine needle points of light!\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating: \u003c\/strong\u003eAstronomik filters consist of up to 130 layers deposited on top of the completely transparent carrier glass. These layers work as the actual filter and as an antireflective coating.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurability: \u003c\/strong\u003eAstronomik filters are completely scratch resistant, and not sensitive to moisture, dew, or high humidity. With others’ filters, after a few years, you start to notice their filter is no longer up to its full capability. Not so with Astronomik filters which maintain their ‘brand new’ transmission specifications year after year. \u003cstrong\u003eAnd, because of Astronomik’s extraordinarily resistant coating technology, our filters come with a 10year warranty.\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAstronomik filters are highquality accessories for visual observing which will significantly expand your observing opportunities. After many years of use your Astronomik filters will be an accessory which will be ready to give you the same joy you experienced many years earlier when they were new. Now that’s an investment worth making!\u003c\/p\u003e\n\u003ch4\u003eCompatible Canon EOS R APS-C cameras\u003c\/h4\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left;\"\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth style=\"text-align: center;\"\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: left;\"\u003eCanon EOS R7\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/www.astronomik.com\/media\/c5\/79\/36\/1775813946\/Haken.svg?ts=1775813946\" style=\"width: 23px; height: 18px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: left;\"\u003eCanon EOS R10\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/www.astronomik.com\/media\/c5\/79\/36\/1775813946\/Haken.svg?ts=1775813946\" style=\"width: 23px; height: 18px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: left;\"\u003eCanon EOS R50\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/www.astronomik.com\/media\/c5\/79\/36\/1775813946\/Haken.svg?ts=1775813946\" style=\"width: 23px; height: 18px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: left;\"\u003eCanon EOS R50 V\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/www.astronomik.com\/media\/c5\/79\/36\/1775813946\/Haken.svg?ts=1775813946\" style=\"width: 23px; height: 18px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: left;\"\u003eCanon EOS R100\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/www.astronomik.com\/media\/c5\/79\/36\/1775813946\/Haken.svg?ts=1775813946\" style=\"width: 23px; height: 18px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003eNon-compatible Canon lenses\u003c\/h4\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left;\"\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth style=\"text-align: center;\"\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: left;\"\u003eCanon RF 14mm f\/1.4 L VCM\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/www.astronomik.com\/media\/9e\/75\/05\/1775813946\/Kreuz.svg?ts=1775813946\" style=\"width: 18px; height: 18px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: left;\"\u003eCanon RF 28mm F2.8 STM\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/www.astronomik.com\/media\/9e\/75\/05\/1775813946\/Kreuz.svg?ts=1775813946\" style=\"width: 18px; height: 18px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: left;\"\u003eCanon RF 35mm F1.8 IS Macro STM\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/www.astronomik.com\/media\/9e\/75\/05\/1775813946\/Kreuz.svg?ts=1775813946\" style=\"width: 18px; height: 18px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: left;\"\u003eCanon RF 85mm F1.2L USM\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/www.astronomik.com\/media\/9e\/75\/05\/1775813946\/Kreuz.svg?ts=1775813946\" style=\"width: 18px; height: 18px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: left;\"\u003eCanon Extender RF 2x\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/www.astronomik.com\/media\/9e\/75\/05\/1775813946\/Kreuz.svg?ts=1775813946\" style=\"width: 18px; height: 18px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: left;\"\u003eCanon Extender RF 1.4x\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/www.astronomik.com\/media\/9e\/75\/05\/1775813946\/Kreuz.svg?ts=1775813946\" style=\"width: 18px; height: 18px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eAstronomik filters are diffraction-limited, ensuring that the optical performance (resolution and contrast) of your telescope is not compromised. Thanks to the high-precision machining of the glas substrate, all Astronomik filters are parfocal. The wedge errors are far below all common tolerances. Therefore, all issues concerning focal distances and the exact alignment of images from each color channel are effectively eliminated.\u003c\/p\u003e\n\u003cp\u003eAll Astronomik filters are ideal for modern cameras, including both CMOS- and CCD-based models, ensuring you capture the best possible images with your equipment. Sharpness, contrast, and the absence of any reflections and halos are guaranteed. Even with bright stars in the field of view, nebulae and galaxies will be captured with the finest structures. The Astronomik MFR and MaxFR coatings are designed for optimal performance across a wide range of focal ratios of the optics used.\u003c\/p\u003e\n\u003cp\u003eEvery Astronomik filter undergoes a rigorous quality control process before delivery.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e92% transmission at 486nm (H-beta)\u003c\/li\u003e\n\u003cli\u003e92% transmission at 496nm (OIII)\u003c\/li\u003e\n\u003cli\u003e92% transmission at 501nm (OIII)\u003c\/li\u003e\n\u003cli\u003e97% transmission at 656nm (H-alpha)\u003c\/li\u003e\n\u003cli\u003eTransmission range: 450 to 540nm and above 650nm\u003c\/li\u003e\n\u003cli\u003eGlass thickness: 1mm (except Astronomik OWB Type 3 and XT filters)\u003c\/li\u003e\n\u003cli\u003eFinely polished optical glass, free of any striae, residual stresses, and bubbles\u003c\/li\u003e\n\u003cli\u003eExtremely scratch-resistant and durable coating\u003c\/li\u003e\n\u003cli\u003eCompletely resistant against high humidity and aging effects\u003c\/li\u003e\n\u003cli\u003eParfocal with other Astronomik filters\u003c\/li\u003e\n\u003cli\u003eDiffraction-limited\u003c\/li\u003e\n\u003cli\u003eOptimized spectral windows\u003c\/li\u003e\n\u003cli\u003eDelivered in a high-quality, long-lasting filter box\u003c\/li\u003e\n\u003cli\u003eMade in Germany\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cp\u003eCLS filter, at selected size. \u003c\/p\u003e\n\u003ch3 class=\"tab__content tab.box tab__content--active\" data-content=\"tab-3\" aria-labelledby=\"tab-title-3\" aria-hidden=\"false\" role=\"tabpanel\"\u003e\n\u003cspan\u003eManual \u0026amp; Warranty\u003c\/span\u003e\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.astronomik.com\/en\/warranty-garantie.html\"\u003eAstronomik\u003cspan\u003e \u003c\/span\u003e\u003c\/a\u003e10 year warranty\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Astronomik","offers":[{"title":"1.25\"\/M28.5","offer_id":43445845393637,"sku":"AK-8H0053","price":108.0,"currency_code":"CAD","in_stock":true},{"title":"2\"\/M48","offer_id":43445845426405,"sku":"AK-8H0054","price":230.0,"currency_code":"CAD","in_stock":true},{"title":"31mm Round","offer_id":43445845459173,"sku":"AK-8H00FI","price":135.0,"currency_code":"CAD","in_stock":true},{"title":"36mm Round","offer_id":43445845491941,"sku":"AK-8H00FJ","price":162.0,"currency_code":"CAD","in_stock":true},{"title":"50mm Round","offer_id":43445845524709,"sku":"AK-8H00A3","price":230.0,"currency_code":"CAD","in_stock":true},{"title":"50 mm Square","offer_id":43445845557477,"sku":"AK-8H00AD","price":257.0,"currency_code":"CAD","in_stock":true},{"title":"Clip-Filter EOS APS-C","offer_id":43445845590245,"sku":"AK-8H00IC","price":176.0,"currency_code":"CAD","in_stock":true},{"title":"Clip-Filter EOS-R","offer_id":48895411519717,"sku":"AK-8h11uy","price":211.0,"currency_code":"CAD","in_stock":true},{"title":"Clip-Filter EOS M","offer_id":43445845623013,"sku":"AK-8H00R6","price":189.0,"currency_code":"CAD","in_stock":true},{"title":"Clip-Filter EOS XL","offer_id":43445845655781,"sku":"AK-8H00LC","price":244.0,"currency_code":"CAD","in_stock":true},{"title":"Clip-Filter EOS R XL","offer_id":44127368315109,"sku":"AK-8h11g9","price":271.0,"currency_code":"CAD","in_stock":true},{"title":"Clip-Filter Nikon XL","offer_id":43445845688549,"sku":"AK-8H11AS","price":271.0,"currency_code":"CAD","in_stock":true},{"title":"Clip-Filter Nikon Z XL","offer_id":44127378211045,"sku":"AK-8h11kx","price":271.0,"currency_code":"CAD","in_stock":true},{"title":"Clip-Filter Pentax K-1","offer_id":43445845721317,"sku":"AK-8H11EB","price":271.0,"currency_code":"CAD","in_stock":true},{"title":"Clip-Filter Sony alpha 7","offer_id":43445845754085,"sku":"AK-8H00XA","price":271.0,"currency_code":"CAD","in_stock":true},{"title":"M49","offer_id":44127383191781,"sku":"AK-8h00tl","price":244.0,"currency_code":"CAD","in_stock":true},{"title":"M52","offer_id":43445845786853,"sku":"AK-8H00TM","price":257.0,"currency_code":"CAD","in_stock":true},{"title":"M55","offer_id":44127389614309,"sku":"AK-8h00tn","price":489.0,"currency_code":"CAD","in_stock":true},{"title":"M58","offer_id":44127389647077,"sku":"AK-8h00to","price":502.0,"currency_code":"CAD","in_stock":true},{"title":"M62","offer_id":44127389679845,"sku":"AK-8h00tp","price":502.0,"currency_code":"CAD","in_stock":true},{"title":"M67","offer_id":44127389712613,"sku":"AK-8h00tq","price":530.0,"currency_code":"CAD","in_stock":true},{"title":"M72","offer_id":44127389745381,"sku":"AK-8h00h3","price":530.0,"currency_code":"CAD","in_stock":true},{"title":"M77","offer_id":44127389778149,"sku":"AK-8h00nz","price":530.0,"currency_code":"CAD","in_stock":true},{"title":"SC Rear Cell 2\"x24TPI","offer_id":43445845819621,"sku":"AK-8H00IA","price":257.0,"currency_code":"CAD","in_stock":true},{"title":"T-Mount\/M42x0.75","offer_id":43445845852389,"sku":"AK-8H00IU","price":203.0,"currency_code":"CAD","in_stock":true},{"title":"XT Clip-Filter EOS APS-C","offer_id":43445845885157,"sku":"AK-8H00KE","price":203.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/products\/Astronomik_CLS_T2-cell_4.jpg?v=1777042094"},{"product_id":"celestron-light-pollution-filter-rasa-11-93617","title":"Celestron Light Pollution Filter RASA 11\" (93617)","description":"\u003ch2 class=\"heading h2 pdp-product-title\"\u003eCelestron Light Pollution Filter RASA 11\"\u003c\/h2\u003e\n\u003cp\u003eGet the most out of your Celestron Rowe-Ackermann Schmidt Astrograph 11, even under light-polluted skies, with this Light Pollution Imaging Filter, custom-designed for the RASA. No matter which camera you use, this filter’s generous 68 mm clear aperture allows it to easily accommodate today’s largest sensors. Utilizing a machined aluminum housing and Schott B270 glass, the filter replaces the RASA’s clear optical window so the RASA’s optical performance is unaltered.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eRemove Light Pollution While Keeping Your Images Bright\u003c\/strong\u003e\u003cbr\u003eLight pollution limits how much of the night sky we can see and photograph. When imaging with a color camera in light polluted areas, skyglow degrades image quality. Light pollution filters help to selectively block light emitted from common streetlights and other ambient lighting. But most light pollution filters greatly compromise the total light throughput, causing dim images, and negatively impact the color balance, causing images to appear too green or blue.\u003cbr\u003e\u003cbr\u003eThe Light Pollution Imaging Filter for RASA “surgically” removes unwanted light pollution while preserving as much of the useful spectrum as possible. That means you’ll still retain over 90 percent of the light captured by your telescope at many wavelengths.\u003cbr\u003e\u003cbr\u003eUnlike other light pollution suppression filters, the Celestron LP Imaging Filter for RASA maintains a relatively neutral color balance so you can bring out subtle color in galaxies and other faint deep sky objects. Multiple layers of specially-formulated dielectric coatings provide the desired transmission, while anti-reflective coatings minimize star halos and internal reflections.\u003cbr\u003e\u003cbr\u003eAlso included is a clear plastic case to protect the filter when not in use\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eIndividually Tested for Quality\u003c\/strong\u003e\u003cbr\u003eEvery Celestron Light Pollution Imaging Filter is tested individually for light transmission. Inside the box, you’ll receive a graph detailing the actual transmission spectrum for your specific filter.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAdditional Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTake beautiful images of deep-sky objects from light-polluted suburban locations with the Rowe-Ackermann Schmidt Astrograph 11 (RASA 11) using this light pollution suppression filter\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli\u003eCustom designed to replace the RASA’s optical window, so you still get optimum optical performance even with the addition of the filter\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli\u003eSelectively blocks unwanted light pollution while providing over 90% transmission at critical wavelengths\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli\u003eMaintains a more neutral color balance than other light pollution imaging filters, perfect for imaging colorful nebulae and galaxies\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli\u003eEvery filter is individually tested for light transmission. A graph of test results for your specific filter is included for your reference\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable class=\"table-open\" id=\"product-specs-list\" style=\"box-sizing: inherit; border-collapse: collapse; border-spacing: 0px; text-align: left; width: 1200px; color: #333e48; font-family: 'Open Sans', Arial, Helvetica, sans-serif; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\n\u003ctbody id=\"spec-block-1\" style=\"box-sizing: inherit;\"\u003e\n\u003ctr style=\"box-sizing: inherit; border-bottom: 1px solid #e4e8ea;\"\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px; width: 300px; font-weight: bold;\"\u003eGlass thickness:\u003c\/td\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px;\"\u003e2.1mm (0.08\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; border-bottom: 1px solid #e4e8ea;\"\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px; width: 300px; font-weight: bold;\"\u003eFilter diameter:\u003c\/td\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px;\"\u003e72mm (2.83\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; border-bottom: 1px solid #e4e8ea;\"\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px; width: 300px; font-weight: bold;\"\u003eClear aperture:\u003c\/td\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px;\"\u003e68mm (2.67\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; border-bottom: 1px solid #e4e8ea;\"\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px; width: 300px; font-weight: bold;\"\u003eCoatings:\u003c\/td\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px;\"\u003eHard Coated dielectric and multi-layer antireflection coatings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; border-bottom: 1px solid #e4e8ea;\"\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px; width: 300px; font-weight: bold;\"\u003eFilter glass:\u003c\/td\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px;\"\u003eSchott B270\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; border-bottom: 0px;\"\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px; width: 300px; font-weight: bold;\"\u003eHousing:\u003c\/td\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px;\"\u003eAndodized aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eIn the Box\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eCelestron Light Pollution Filter RASA 11\"\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003e2-Year Warranty\u003c\/p\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":43125752725733,"sku":"CEL-93617","price":978.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/celestron-light-pollution-filter-rasa-11-93617-astronomy-plus-1.webp?v=1690484650"},{"product_id":"celestron-light-pollution-filter-rasa-8-93614","title":"Celestron Light Pollution Filter RASA 8\" (93614)","description":"\u003ch2 class=\"heading h2 pdp-product-title\"\u003eCelestron Light Pollution Filter RASA 8\"\u003c\/h2\u003e\n\u003cp\u003eLight pollution in the night sky can significantly degrade contrast in astronomical images. This is especially true when using very fast telescopes like the 8” RASA because the sky background saturates very quickly. The “noise” of the light pollution overwhelms the “signal” from the celestial object you are imaging, making it difficult to get the most detailed image. The Light Pollution Imaging Filter for the 8” RASA remedies this by blocking light pollution while transmitting light from deep-sky objects. The result is bright, detailed objects that pop off the black sky background with superior contrast.\u003cbr\u003e\u003cbr\u003eFortunately, many sources of light pollution have relatively discreet emission spectra; they emit primarily at specific wavelengths of light. By strategically blocking these wavelengths, the filter greatly reduces the effects of light pollution without degrading overall image quality.\u003cbr\u003e\u003cbr\u003eThe Light Pollution Imaging (LPI) Filter for the 8” RASA blocks light from some of the most common sources of light pollution between 400-700nm (i.e., the visible spectrum), including high- and low-pressure sodium-vapor streetlights, mercury-vapor streetlights, and natural airglow caused by oxygen in the atmosphere. Unlike some light pollution filters, the LPI filter blocks only specific areas of the spectrum instead of wide regions. This helps to maintain image brightness and color balance. In addition, specific wavelengths associated with emission nebulae, such as H-α(656nm), H-β (486nm), OIII (496nm and 501nm), and SII (672nm), are highly transmitted, ensuring minimal loss of image brightness for those objects.\u003cbr\u003e\u003cbr\u003eThe filter fits directly into the internal filter mount in the RASA 8’s front lens cell, where the optical window normally mounts. By removing the clear window and replacing it with the filter, optical performance for the entire system is maintained.\u003cbr\u003e\u003cbr\u003eEach filter comes with a plastic storage case to safely store the filter or the placeholder glass that came with your RASA when not in use. You will also receive a spectral transmission graph unique to your specific unit, verifying its performance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAdditional Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEnhance your 8” Rowe-Ackermann Schmidt Astrograph (RASA) by blocking light pollution, improving image contrast, and darkening the sky background.\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli\u003eThis filter selectively blocks wavelengths of light from sources of light pollution, such as streetlights, not broad regions of the spectrum.\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli\u003eDoes not block wavelengths associated with emission nebulae, keeping your nebula images bright and detailed.\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli\u003eFits into the 8” RASA’s integrated filter mount, maintaining peak optical performance.\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli\u003eOptically flat surfaces free of defects, constructed of Schott glass with anti-reflection coatings.\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable style=\"box-sizing: inherit; border-collapse: collapse; border-spacing: 0px; text-align: left; width: 1200px; color: #333e48; font-family: 'Open Sans', Arial, Helvetica, sans-serif; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\" id=\"product-specs-list\" class=\"table-open\"\u003e\n\u003ctbody style=\"box-sizing: inherit;\" id=\"spec-block-1\"\u003e\n\u003ctr style=\"box-sizing: inherit; border-bottom: 1px solid #e4e8ea;\"\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px; width: 300px; font-weight: bold;\"\u003eMaterial:\u003c\/td\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px;\"\u003eSchott B270\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; border-bottom: 1px solid #e4e8ea;\"\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px; width: 300px; font-weight: bold;\"\u003eGlass thickness:\u003c\/td\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px;\"\u003e1.9mm (0.07\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; border-bottom: 1px solid #e4e8ea;\"\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px; width: 300px; font-weight: bold;\"\u003eFilter diameter:\u003c\/td\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px;\"\u003e46mm (1.81\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; border-bottom: 1px solid #e4e8ea;\"\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px; width: 300px; font-weight: bold;\"\u003eClear aperture:\u003c\/td\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px;\"\u003e43mm (1.69\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; border-bottom: 1px solid #e4e8ea;\"\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px; width: 300px; font-weight: bold;\"\u003eCoatings:\u003c\/td\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px;\"\u003eDichroic, multi-layer anti-reflection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; border-bottom: 0px;\"\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px; width: 300px; font-weight: bold;\"\u003eHousing:\u003c\/td\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px;\"\u003eAluminum, black anodized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eIn the Box\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eCelestron Light Pollution Filter RASA 8\"\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003e2-Year Warranty\u003c\/p\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":43125754560741,"sku":"CEL-93614","price":406.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/celestron-light-pollution-filter-rasa-8-93614-astronomy-plus-1.webp?v=1690484651"},{"product_id":"zwo-atmospheric-dispersion-corrector-adc","title":"ZWO Atmospheric Dispersion Corrector (ADC)","description":"\u003ch1\u003eZWO Atmospheric Dispersion Corrector\u003c\/h1\u003e\n\u003cp\u003eZWO Atmospheric Dispersion Corrector (ADC) is used to reduce the effect of atmospheric dispersion on lunar and planetary images. It can be used for imaging and for observation. \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/305bbd5784cd9b206041ffab39b9d596.webp?v=1752870930\" alt=\"\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/ae159e88565de355077fcd72735d8afa.webp?v=1752870930\" alt=\"\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/e88c4f041374cd093e8e0f6b95dacc5e.webp?v=1752870930\" alt=\"\"\u003e\n\u003c\/div\u003e\n\u003ch2\u003e\u003cstrong\u003eWhy you would use a ZWO Atmospheric Dispersion Corrector ?\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eLight from any star or planet that enters our atmosphere at an angle will suffer refraction effects. It bend to light to a slightly steeper angle. This refraction effect makes the object appear higher in the sky than if the atmosphere wasn’t there. The degree of refraction depends to a small degree on various things. Like temperature, humidity, observers and height above sea level. It does increases strongly with decreasing altitude of the object. For example, the image of the sun at sunset can actually be elevated by over 0.5°, which is slightly more than one solar diameter.\u003c\/p\u003e\n\u003cp\u003eLike most optical media the refractive (bending) power of the atmosphere is actually dependent on the wavelength of light. This is called optical dispersion. Atmospheric dispersion corrector means that actually the degree of ‘lift’ that the refraction causes depends not only on the angle of the light, but also the colour of that light. Atmospheric dispersion spreads the light from any point source into a vertical spectrum of colours whose length increases the lower the object is in the sky.\u003c\/p\u003e\n\u003cp\u003eThe schematic below illustrates this dispersion effect as light enters the atmosphere and also the lifted elevation of the image. The lift is wavelength dependent and hence the image is separated into different colours. A planet exhibiting bad atmospheric dispersion effects will have a blue fringe on the top edge and a red fringe on the bottom edge.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eYou can read in much more detail in this excellent article by Martin Lewis: \u003ca href=\"http:\/\/skyinspector.co.uk\/atm-dispersion-corrector--adc\"\u003ehttp:\/\/skyinspector.co.uk\/atm-dispersion-corrector–adc\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePrism Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eH-K9L(Schott BK7)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePrism Surface Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eλ\/10@632.8nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePrism Deviation Angler\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCoating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAR Coating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConnection Camera\/Eyepiece Side\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.25″ Holder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConnection Telescope Side\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.25″ Nosepiece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eADC\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eManuals \u0026amp; Warranty\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/istronomyplus.com\/fr\/pages\/zwo-warranty?_pos=1\u0026amp;_psq=zwo+warranty\u0026amp;_ss=e\u0026amp;_v=1.0\" rel=\"noopener\" target=\"_blank\"\u003eZWO 2-Years Warranty\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/istronomyplus.com\/pages\/zwo-guides-and-manuals\" rel=\"noopener\" target=\"_blank\"\u003eZWO General Product \u0026amp; Software Manuals\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/ZWO-ADC-Quick-Guide.pdf?v=1670453576\" target=\"_blank\"\u003eZWO ADC Quick Guide\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/ZWO-ADC-Manual.pdf?v=1670453569\" target=\"_blank\"\u003eZWO ADC Manual\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/ZWO-How-to-Clean-the-Prism-of-the-ADC.pdf?v=1670453599\" target=\"_blank\"\u003eZWO How to Clean the Prism of the ADC\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/ZWO-Atmospheric-Dispersion-Corrector-ADC-Transmission-curve.pdf?v=1670453699\" target=\"_blank\"\u003eZWO Atmospheric Dispersion Corrector (ADC) Transmission curve\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/ZWO-Atmospheric-Dispersion-Corrector-ADC-Mechanical-Drawing.pdf?v=1670453694\" target=\"_blank\"\u003eZWO Atmospheric Dispersion Corrector (ADC) Mechanical Drawing\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"ZWO","offers":[{"title":"Default Title","offer_id":43133295067365,"sku":"ZWO-ADC","price":209.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/zwo-atmospheric-dispersion-corrector-adc-astronomy-plus_02e753a2-4772-4238-b7c4-fd2a13346044.jpg?v=1690484758"},{"product_id":"zwo-uv-ir-cut-filter","title":"ZWO UV\/IR Cut Filter","description":"\u003ch2\u003eZWO UV\/IR Cut Filter\u003c\/h2\u003e\n\u003cp\u003eThe ZWO UV\/IR Cut Filter  filter is suitable for color camera with AR protect window. It’s available in 1.25″ or 2″ round mounted sizes.\u003c\/p\u003e\n\u003cp\u003eThe ZWO UV\/IR Cut Filter blocks infrared light from reaching the sensor of your CCD or CMOS camera or your expensive H-alpha filter. When imaging, the addition of this simple and inexpensive accessory will result in sharper images, and when doing solar work, the IR Cut Filter will your protect H-alpha filter from the damaging effects of infrared radiation.\u003c\/p\u003e\n\u003cp\u003eInfrared or IR light is invisible to the human eye, and so even though most telescopes are not designed to focus IR light, it does not matter when you are using your telescope visually. However, when you add a camera to the mix, its a whole other story! Unlike the human eye, a silicon sensor is very sensitive to light in the infrared portion of the spectrum, and that is a problem because infrared images are blurry as all get out. That means your nice, sharp visual light image is degraded by the addition of the infrared layer. This problem can easily be solved by blocking the infrared, and this filter will do just that.\u003c\/p\u003e\n\u003cp\u003eThe ZWO UV\/IR Cut Filter filter is housed in a 1.25” cell, and has internal threads so that you can stack filters together. The filter comes with a protective plastic case.\u003c\/p\u003e\n\u003cp\u003eThickness: 1.85 mm\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSize\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.25″ Round Mounted\n\u003cp\u003e2″ Round Mounted\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThickness\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFilter\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eManuals \u0026amp; Warranty\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/istronomyplus.com\/fr\/pages\/zwo-warranty?_pos=1\u0026amp;_psq=zwo+warranty\u0026amp;_ss=e\u0026amp;_v=1.0\" rel=\"noopener\" target=\"_blank\"\u003eZWO 2-Years Warranty\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/istronomyplus.com\/pages\/zwo-guides-and-manuals\" rel=\"noopener\" target=\"_blank\"\u003eZWO General Product \u0026amp; Software Manuals\u003c\/a\u003e\u003c\/p\u003e","brand":"ZWO","offers":[{"title":"1.25\" Mounted","offer_id":43768382882021,"sku":"ZWO-IRCUT1.25","price":40.0,"currency_code":"CAD","in_stock":true},{"title":"2\" Mounted","offer_id":43768382914789,"sku":"ZWO-IRCUT2","price":69.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/3e6fe3121596977d2c0d419fbbbf882f.webp?v=1777044037"},{"product_id":"zwo-lrgb-filters","title":"ZWO LRGB Filters","description":"\u003ch1\u003eZWO LRGB Filters\u003c\/h1\u003e\n\u003cp\u003eThe new ZWO LRGB Filters  are designed to approximately equalize the flux of mono sensors.\u003c\/p\u003e\n\u003cp\u003eThe LRGB filters have a better transmission, better coatings and  better color separation.\u003c\/p\u003e\n\u003cp\u003eThe RGB color combine weights will be approximately 1:1:1. Available in 1.25″ \u0026amp; 2″ round mounted sizes as well as 31mm \u0026amp; 36mm round unmounted sizes.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFine-optically polished to ensure accurate 1\/4 wavefront\u003c\/li\u003e\n\u003cli\u003eMore than 92% transmission at passband\u003c\/li\u003e\n\u003cli\u003eInfrared wavelength 700-1100nm cut-off\u003c\/li\u003e\n\u003cli\u003ePrecision off-band blocking\u003c\/li\u003e\n\u003cli\u003eMulti-layers anti-reflection coating\u003c\/li\u003e\n\u003cli\u003eSmall spectral “gap” to minimize effect of light pollution\u003c\/li\u003e\n\u003cli\u003eMore parfocal\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSize\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.25″ Round Mounted\n\u003cp\u003e31mm Round Unmounted\u003c\/p\u003e\n\u003cp\u003e36mm Round Unmounted\u003c\/p\u003e\n\u003cp\u003e2″ Round Mounted\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThickness\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.9mm (for 1.25″ filter)\n\u003cp\u003e2mm (for 31mm \u0026amp; 36m filters)\u003c\/p\u003e\n\u003cp\u003e1.85mm (for 2″ filter)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFilters LRGB\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eManuals \u0026amp; Warranty\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/istronomyplus.com\/fr\/pages\/zwo-warranty?_pos=1\u0026amp;_psq=zwo+warranty\u0026amp;_ss=e\u0026amp;_v=1.0\" rel=\"noopener\" target=\"_blank\"\u003eZWO 2-Years Warranty\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/istronomyplus.com\/pages\/zwo-guides-and-manuals\" rel=\"noopener\" target=\"_blank\"\u003eZWO General Product \u0026amp; Software Manuals\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/ZWO-LRGB-Filters-Optimized-for-ASI1600-Transmission-Curves.pdf?v=1670873476\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eZWO LRGB Filters Optimized Curves\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/ZWO-LRGB-Filters-2-Mechanical-Drawing.pdf?v=1670873494\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eZWO LRGB Filters 2″ Mechanical Drawing\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"ZWO","offers":[{"title":"1.25\" Mounted","offer_id":43760512631013,"sku":"ZWO-LRGB1.25NEW","price":207.0,"currency_code":"CAD","in_stock":true},{"title":"36mm Unmounted","offer_id":43760512696549,"sku":"ZWO-LRGB36","price":279.0,"currency_code":"CAD","in_stock":true},{"title":"2\" Mounted","offer_id":43760512729317,"sku":"ZWO-LRGB2","price":419.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/zwo-lrgb-filters-astronomy-plus-1_c3e899fd-b381-471b-afcc-2a8a9b8350fa.png?v=1690484789"},{"product_id":"zwo-h-alpha-oiii-sii-7nm-narrowband-sho-filter-set","title":"ZWO 7nm Narrowband SHO Filters (Ha, OIII \u0026 SII)","description":"\u003ch2\u003eZWO 7nm SHO Narrowband Filters (Ha, OIII \u0026amp; SII)\u003c\/h2\u003e\n\u003cp\u003eThe ZWO SHO Narrowband Filter Set contains one H-alpha, one OIII and one SII filter. Use it for tricolor CCD astrophotography. Available in 1.25″ \u0026amp; 2″ round mounted sizes as well as 31mm \u0026amp; 36mm round unmounted sizes.\u003c\/p\u003e\n\u003cp\u003eThe ZWO H-alpha 7nm Narrowband Filter has a bandpass of  7nm and passes light at 656nm  wavelength, light transmission rate comes up to 90%. Best choice of narrowband H-alpha astrophotography filter for high-contrast imaging and revealing rich details of the nebula even in areas with strong light pollution, just prepare to experience the infinite fun with it!\u003c\/p\u003e\n\u003cp\u003eThe ZWO OIII 7nm Narrowband Filter is designed for nebula observation allowing the 7nm bandwidth of light centered on a wavelength of 500nm through,  which corresponds to OIII emission lines, blocking out all other light.  Adding the ZWO O-III Narrowband filter to your imaging collection will help you go beyond the RGB imaging and will help capture your favorite nebulas in a totally new light, no matter how polluted your skies may be!\u003c\/p\u003e\n\u003cp\u003eThe ZWO SII 7nm Narrowband Filter passes light at 672nm wavelength with a bandpass of 7nm which is designed for nebula observation. It is suitable for visual observation on most emission nebulae, planetary nebulae and supernova remnants, use it with H-alpha and OIII narrowband filters (SHO Set) for tricolor CCD astrophotography.\u003c\/p\u003e\n\u003cp\u003eNarrowband filter does not eliminate the effects of light pollution or increase the object’s brightness. In many cases, they increase the contrast between nebula and night sky, not brightening the nebula.\u003c\/p\u003e\n\u003cp\u003eIt can reduce the transmission of certain wavelengths of light, specifically those produced by artificial light including mercury vapor, and both high and low pressure sodium vapor lights and the unwanted natural light caused by neutral oxygen emission in our atmosphere (i.e. skyglow).\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/0b7561e863701da396bce2092bc696ec.webp?v=1752870758\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch4\u003eNew vs Old Filters\u003c\/h4\u003e\n\u003cp\u003eNew Ha filter is based on the new base glass, less reflection( less halo of bright stars).\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003eWe made a test of our Ha Filters (ASI1600 mono camera, single frame, 300s, DDP in MaximDL) :\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/0c2508e6ce1e835958f976b9e417026a.webp?v=1752870720\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eNew OIII filter is based on the same base glass, new coating standard, better block rate of off-band.\u003c\/p\u003e\n\u003cp\u003eNew SII filter is based on the new base glass, less reflection( less halo of bright stars).\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFWHM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7±0.5nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSizes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.25″ Round Mounted\n\u003cp\u003e31mm Round Unmounted\u003c\/p\u003e\n\u003cp\u003e36mm Round Unmounted\u003c\/p\u003e\n\u003cp\u003e2″ Round Mounted\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGlass Thickness\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2.0+\/-0.03 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePolishing\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1\/4 wavefront over the both surfaces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTransmission\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAbout 90% at SII line 672nm\n\u003cp\u003e\u0026lt;0.1% transmission of off-band, OD3(Optical Density)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIR-Cut\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e700-1100nm cut-off\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eFilter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCase\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eManuals \u0026amp; Warranty\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/istronomyplus.com\/fr\/pages\/zwo-warranty?_pos=1\u0026amp;_psq=zwo+warranty\u0026amp;_ss=e\u0026amp;_v=1.0\" rel=\"noopener\" target=\"_blank\"\u003eZWO 2-Years Warranty\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/istronomyplus.com\/pages\/zwo-guides-and-manuals\" rel=\"noopener\" target=\"_blank\"\u003eZWO General Product \u0026amp; Software Manuals\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/ZWO-Narrowband-Filters-Transmission-Curves.pdf?v=1670868994\" target=\"_blank\"\u003eZWO Narrowband Filters Transmission Curves\u003c\/a\u003e\u003c\/p\u003e","brand":"ZWO","offers":[{"title":"Filter Set (SHO) \/ 1.25\" Mounted","offer_id":43760428515557,"sku":"ZWO-NB7nm1.25","price":517.0,"currency_code":"CAD","in_stock":true},{"title":"Filter Set (SHO) \/ 31mm Unmounted","offer_id":46386674696421,"sku":"ZWO-NB7nmD31","price":591.0,"currency_code":"CAD","in_stock":true},{"title":"Filter Set (SHO) \/ 36mm Unmounted","offer_id":43760428581093,"sku":"ZWO-NB7nmD36","price":671.0,"currency_code":"CAD","in_stock":true},{"title":"Filter Set (SHO) \/ 2\" Mounted","offer_id":43760428613861,"sku":"ZWO-NB7nmD2","price":979.0,"currency_code":"CAD","in_stock":true},{"title":"Oxygen III \/ 1.25\" Mounted","offer_id":43760428646629,"sku":"ZWO-OIII7nm1.25","price":181.0,"currency_code":"CAD","in_stock":true},{"title":"Oxygen III \/ 31mm Unmounted","offer_id":46386674729189,"sku":"ZWO-OIII7nmD31","price":207.0,"currency_code":"CAD","in_stock":true},{"title":"Oxygen III \/ 36mm Unmounted","offer_id":43760428712165,"sku":"ZWO-OIII7nmD36","price":237.0,"currency_code":"CAD","in_stock":true},{"title":"Oxygen III \/ 2\" Mounted","offer_id":43760428744933,"sku":"ZWO-OIII7nmD2","price":349.0,"currency_code":"CAD","in_stock":true},{"title":"H-Alpha \/ 1.25\" Mounted","offer_id":43760428777701,"sku":"ZWO-Ha7nm1.25","price":181.0,"currency_code":"CAD","in_stock":true},{"title":"H-Alpha \/ 31mm Unmounted","offer_id":46386674761957,"sku":"ZWO-Ha7nm31","price":203.0,"currency_code":"CAD","in_stock":true},{"title":"H-Alpha \/ 36mm Unmounted","offer_id":43760428843237,"sku":"ZWO-Ha7nmD36","price":237.0,"currency_code":"CAD","in_stock":true},{"title":"H-Alpha \/ 2\" Mounted","offer_id":43760428876005,"sku":"ZWO-Ha7nm2","price":349.0,"currency_code":"CAD","in_stock":true},{"title":"Sulfur II \/ 1.25\" Mounted","offer_id":43760428908773,"sku":"ZWO-SII7nm1.25","price":181.0,"currency_code":"CAD","in_stock":true},{"title":"Sulfur II \/ 31mm Unmounted","offer_id":46386674794725,"sku":"ZWO-SII7nm31","price":207.0,"currency_code":"CAD","in_stock":true},{"title":"Sulfur II \/ 36mm Unmounted","offer_id":43760428974309,"sku":"ZWO-SII7nmD36","price":237.0,"currency_code":"CAD","in_stock":true},{"title":"Sulfur II \/ 2\" Mounted","offer_id":43760429007077,"sku":"ZWO-SII7nm2","price":349.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/zwo-h-alpha-oiii-and-sii-7nm-narrowband-sho-filters-astronomy-plus-1_32f6c439-47b7-4af3-a15f-bedf87b1d1fe.jpg?v=1690484789"},{"product_id":"zwo-duo-band-filter","title":"ZWO Duo-Band Filter","description":"\u003ch2\u003eZWO Duo-Band Filter\u003c\/h2\u003e\n\u003cp\u003eThe ZWO Duo-Band Filter is a dual narrowband filter primarily aimed at complementing our range of colour ASI cameras. The Duo-Band filter is aimed at the astronomer who may already own a One Shot Colour (OSC) camera and wants to image using narrowband techniques or emission objects without purchasing a mono camera, filter wheel and narrowband filter set.\u003c\/p\u003e\n\u003cp\u003eThe Duo-Band filter offers an economical entry into the world of narrowband imaging and can also offer a practical solution to imaging in light polluted urban areas.\u003c\/p\u003e\n\u003cp\u003eThe dual band pass nature of the Duo-Band filter passes light at Hα (656nm) and OIII (500nm) wavelength, and can reduce the interference from natural light sources such as moonlight, or artificial light pollution such as street lighting.\u003c\/p\u003e\n\u003cp\u003eIt can help improve the contrast and visibility of deep sky objects such as emission nebula using a OSC camera.\u003c\/p\u003e\n\u003cp\u003eIf you are looking for a solution to deep sky photography in light pollution area, then ZWO Duo-Band Filter will be a great choice.\u003c\/p\u003e\n\u003cp\u003eThe Duo-Band filter can be used with all ASI cameras and EFW Electronic Filter Wheel and comes in 1.25” and 2” sizes.\u003c\/p\u003e\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eAerometal material. Precise CNC machining;\u003c\/li\u003e\n\u003cli\u003eFine sandblasting process and anodized finish;\u003c\/li\u003e\n\u003cli\u003eExtinction treatment to prevent reflection;\u003c\/li\u003e\n\u003cli\u003eLaser engraving font that will never fade;\u003c\/li\u003e\n\u003cli\u003ePrecise double-sided optical coating;\u003c\/li\u003e\n\u003cli\u003eFine-optically polished to ensure accurate 1\/4 wavefront and \u0026lt;30 seconds parallelism over the both surfaces;\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eKindly Reminder\u003c\/h4\u003e\n\u003cp\u003eThe incoming light transmitted through the filter should be perpendicular to the filter, or the incident angle should be less than 8°. Therefore, this product is not suitable for wide-angle or ultra wide-angle lenses.\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003e  \u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFWHM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e15nm (H-alpha)\n\u003cp\u003e35nm (OIII)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSizes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.25″ Round Mounted\n\u003cp\u003e2″ Round Mounted\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGlass Thickness\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.85\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSurface Quality\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e60\/40 (Refer to MIL-O-13830)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTransmission\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMore than 90% transmission at major OIII line 486.nm1, 496nm and 501nm.\n\u003cp\u003eMore than 80% transmission at Ha line 656.3nm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSchott substrate material\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eFilter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCase\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eManuals \u0026amp; Warranty\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/istronomyplus.com\/fr\/pages\/zwo-warranty?_pos=1\u0026amp;_psq=zwo+warranty\u0026amp;_ss=e\u0026amp;_v=1.0\" rel=\"noopener\" target=\"_blank\"\u003eZWO 2-Years Warranty\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/istronomyplus.com\/pages\/zwo-guides-and-manuals\" rel=\"noopener\" target=\"_blank\"\u003eZWO General Product \u0026amp; Software Manuals\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/ZWO-Duo-Band-Filter-Transmission-Curve.pdf?v=1670536776\" target=\"_blank\"\u003eZWO Duo-Band Filter Transmission Curve\u003c\/a\u003e\u003c\/p\u003e","brand":"ZWO","offers":[{"title":"1.25\" Round Mounted","offer_id":43751398998245,"sku":"ZWO-DB1.25","price":139.0,"currency_code":"CAD","in_stock":true},{"title":"2\" Round Mounted","offer_id":43751399031013,"sku":"ZWO-DB2","price":239.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/zwo-duo-band-filter-astronomy-plus-1_116c90c8-d6e0-4f00-9651-419973ecef35.png?v=1690484790"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/collections\/filters-astronomy-plus_57fee976-6f16-4d38-8a61-09c1a7eb40db.jpg?v=1715807907","url":"https:\/\/istronomyplus.com\/collections\/filters.oembed?page=3","provider":"Astronomy Plus – Telescopes \u0026 Astrophotography Canada","version":"1.0","type":"link"}