{"title":"Broadband Filters","description":"\u003cspan data-mce-fragment=\"1\"\u003eBroadband allow wide wavelength ranges of incident light to pass through; in selected regions of the spectrum, these filters block the light. These are the best for galaxy imaging.\u003c\/span\u003e","products":[{"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":"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":"baader-uhc-s-l-booster-filter","title":"Baader UHC-L \/ Ultra-L-Booster Filter (CMOS-optimized)","description":"\u003ch1 class=\"product-title\"\u003eBaader UHC-L \/ Ultra-L-Booster Filter (CMOS-optimized)\u003c\/h1\u003e\n\u003cp\u003eNew CMOS-optimized Baader UHC-L DeepSky Filter from Baader Planetarium with Reflex-Blocker™and Life-Coat™.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eVisual and photographic 1¼\" UHC-L Nebula filter with highest transmission\u003c\/li\u003e\n\u003cli\u003eUltra High Contrast L Filter blocks city lights and increases contrast of nebula and comets (C2 lines)\u003c\/li\u003e\n\u003cli\u003eCan be used as LED-opimized Luminance filter for RGB-Imaging wtih skyglow suppression\u003c\/li\u003e\n\u003cli\u003eBlue transmission optimized to block blueish skyglow caused by LED car- and streetlights.\u003c\/li\u003e\n\u003cli\u003eCreates a much brighter image than a conventional Nebula filter\u003c\/li\u003e\n\u003cli\u003eIdeal for deep-sky observers. This UHC-L filter is the perfect visual complement to narrowband OIII filters.\u003c\/li\u003e\n\u003cli\u003eReflex-Blocker™ hard coated and planeoptically polished – with sealed coating edges (Life-Coat™)\u003c\/li\u003e\n\u003cli\u003eBlackened edges all around, with filter-lead-side-indicator in the form of a telescope-sided black outer rim\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eBaader UHC-L Nebula filter with highest transmission, realistic star colors, also usable as highly effective LED-optimized luminance filter for LRGB imaging.\u003c\/h4\u003e\n\u003cp\u003eThe Baader UHC-L filter is the classic allround \"light pollution rejection filter\", but now also blocked against the main LED emissions in the blue part of the spectrum. The passband curve corresponds to a wide dual-band filter without distorting star colors. The two passbands transmitt all light emitted by the known gas nebulae (the H-alpha and H-beta lines of fluorescent hydrogen as well as the OIII line of oxygen), while both the atmospheric most disturbing stray light from LED lamps and intense bluish car headlights as well as further stray light from classical street lamps and the natural night sky glow (airglow\/skyglow) of the atmosphere are blocked to a large extent. At the same time, the UHC-L filter is coated with latest technology (CMOS-optimized) and therefore blocks false light much more effective than all previous UHC filters.\u003c\/p\u003e\n\u003ch2\u003eUse of the UHC-L filter\u003c\/h2\u003e\n\u003cp\u003eThe application of the UHC-L happens mainly in visual and photographic observation of emission nebulae (star forming regions, planetary nebulae, supernova remnants) under medium to highly polluted skies. Its use is also interesting for comet observation: It passes the OIII line at 501nm as well as the two C2 lines at 511nm and 514nm which are characteristic for the gas tail of many comets.\u003c\/p\u003e\n\u003cp\u003eThis UHC-L filter is the successor of the well-proven plane-optical polished Baader UHC-S filter. It consequently complements it with the advantages of CMOS optimization (no disturbing halos, blackened filter edges, Life-Coat™-coating) while providing an improved transmission spectrum adapted to also cover modern LED light pollution. It provides a brighter image than many classic LPR (Light Pollution Rejection) filters and is therefore not only suitable for large, fast instruments, but also for smaller telescopes collecting less light, where a large exit pupil cannot be achieved. This applies for long-focal length telescopes as well as for small aperture telescopes that only have an eyepiece socket for 1.25\" eyepieces. Unlike the single line or dual line narrowband filters, the image is also bright enough for high magnification, while not diminishing the number of stars.\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eFor deep-sky observers, therefore, this UHC-L filter is the perfect visual complement to narrowband OIII filters.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe UHC-L filter is also\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eexcellent for photographic use\u003c\/strong\u003e. It does not just block polluting terrestrial light sources, but at the same time it serves as a luminance filter (L-filter), since it blocks all UV and IR transmission like a UV\/IR cut filter. An additional UV\/IR-cut filter is therefore not necessary: Cameras without a built-in UV\/IR-cut filter thus deliver significantly sharper images on refracting telescopes. Both classical photographers and users of EAA\/LiveStacking do benefit from the increased sharpness of stars and better contrast of nebulae, as well as the improved transmittance in H-alpha.\u003c\/p\u003e\n\u003cp\u003eLike all Baader CMOS-optimized filters, Baader UHC-L filters likewise are plano-optically polished, with ultra-hard, sputtered dielectric coatings. Even a one-hour bath in boiling water cannot harm these filters! They are scratch-resistant and can be cleaned as often as desired.\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eThe Baader UHC-L \/ Ultra-L-Booster Filter offers all the advantages of the CMOS-opitmized Baader filters:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIncreased contrast, matched for typical CMOS quantum efficiency and s\/n ratio\u003c\/li\u003e\n\u003cli\u003eReflex-Blocker™ coatings, for largest ever freedom from halos, even under most adverse conditions concerning aux-optics\u003c\/li\u003e\n\u003cli\u003eIdentical filter thickness to existing standards, with utmost care for parfocality\u003c\/li\u003e\n\u003cli\u003eBlackened edges all around, with filter-lead-side-indicator in the form of a black frontside outer rim, to additionally eliminate any reflection due to light falling onto the edge of a filter\u003c\/li\u003e\n\u003cli\u003eEach filter coated individually, with sealed coating edge (NOT cut out of a larger plate with coatings left exposed)\u003c\/li\u003e\n\u003cli\u003eLife-Coat™: evermore hard coatings to enable a non-aging coating for life – even in a most adverse environment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/uhc-l-ultra-l-booster-filter-31mm-0a1_928x576_07cdff75-c6ba-463b-a37c-91c94f3c7a59_480x480.webp?v=1701965652\" width=\"551\" height=\"335\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable id=\"product-attribute-specs-table\" class=\"data-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003e\u003cspan\u003eMANUFACTURER\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003e\u003cspan\u003eSize\u003cbr\u003e\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e\n\u003cp\u003e1.25\"\u003cbr\u003e2\"\u003cbr\u003e31 mm\u003cbr\u003e36 mm\u003cbr\u003e50.4 mm\u003cbr\u003e50 x 50 mm\u003cbr\u003e65 x 65 mm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003e\u003cspan\u003eNET WEIGHT (KG)\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e0.006 - 0.032\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003e\u003cspan\u003eCOLOUR\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003e\u003cspan\u003eTRANSMISSION RANGE\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e\u003cspan\u003emultiple bands (see spectral image)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003e\u003cspan\u003eFILTER THICKNESS (WITHOUT CELL)\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2 mm - 3mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003e\u003cspan\u003eAR-COATING\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eReflex-Blocker™ hard coated, planeoptically polished\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003e\u003cspan\u003eSPECIAL FEATURES\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eCMOS-optimized with\u003cspan\u003e \u003c\/span\u003eLife-Coat™\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003e\u003cspan\u003eFILTER USAGE\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e\u003cspan\u003eContrast Enhancement, Light Pollution Reduction, Luminance\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003e\u003cspan\u003eFILTER MOUNTED\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e1.25\" \u0026amp; 2\" Mounted (LPFC 6mm) \/ rest unmounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003e\u003cspan\u003eTYPE OF FILTER\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBandpass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\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;\"\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\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eIn the Box\u003c\/h3\u003e\n\u003cdiv style=\"box-sizing: inherit; -webkit-font-smoothing: antialiased; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); 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-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; text-align: left;\" 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); 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-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; text-align: left;\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eBaader UHC-L \/ L-Booster Filter\u003cbr data-mce-fragment=\"1\"\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\n\u003c\/div\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Baader Planetarium","offers":[{"title":"1.25\"","offer_id":43571900416229,"sku":"BAA-FUHCL-1 (Baader #2961560)","price":143.0,"currency_code":"CAD","in_stock":true},{"title":"2\"","offer_id":43571900448997,"sku":"BAA-FUHCL-2 (Baader #2961563)","price":247.0,"currency_code":"CAD","in_stock":true},{"title":"31mm","offer_id":44461029097701,"sku":"FUHCL-RD31 (Baader #2961561)","price":166.0,"currency_code":"CAD","in_stock":true},{"title":"36mm","offer_id":43571900481765,"sku":"BAA-FUHCL-RD36 (Baader #2961562)","price":201.0,"currency_code":"CAD","in_stock":true},{"title":"50.4mm","offer_id":43571900514533,"sku":"BAA-FUHCL-RD50 (Baader #2961564)","price":255.0,"currency_code":"CAD","in_stock":true},{"title":"50 x 50mm","offer_id":43571900547301,"sku":"BAA-FUHCL-SQ50 (Baader #2961565)","price":401.0,"currency_code":"CAD","in_stock":true},{"title":"65 x 65mm","offer_id":44461121339621,"sku":"BAA-FUHCL-SQ65 (Baader #2961566)","price":561.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/uhc-l-ultra-l-booster-filter-e7d_704x704_df8eb581-f466-40c1-9d37-ae645365fe9d.webp?v=1777045449"},{"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-2-uhc-lpr-filter-94124","title":"Celestron 2\" UHC\/LPR Filter (94124)","description":"\u003ch2\u003eCelestron 2\" UHC\/LPR Filter\u003c\/h2\u003e\n\u003cp\u003eOur 2\" Light Pollution Reduction (LPR) Filters are designed to selectively reduce the transmission of certain wavelengths of light, specifically those produced by artificial light. This includes 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. sky glow).\u003cbr\u003e\u003cbr\u003eThe ultra high contrast (UHC) LPR filter has improved contrast over the typical broadband filters. Sky background is darker, and contrast of emission nebulae are noticeably improved. The advanced technology coatings enable the filter to achieve an outstanding transmission of over 97% across the entire bandpass, with total blockage of prominent light pollution lines. The perfect filter for viewing nebula from light polluted skies, or for boosting the contrast of nebula from dark sky sites.\u003cbr\u003e\u003cbr\u003eIn addition to it's optimum spectral and optical characteristics, the UHC\/LPR filter offers important features that set it apart and result in the highest quality celestial views:\u003cbr\u003e\u003cbr\u003eThe multi-layer dielectric coatings are plasma assisted and Ionbeam hardened using the latest technology for durability and resistance to scratching.\u003cbr\u003e\u003cbr\u003eImproved transmission translates to maximum image brightness and contrast. Users of smaller, 4\"-11\" telescopes will especially appreciate the high efficiency, and larger scope users will love the rich star fields and detailed subtle nebular shadings that are left intact.\u003cbr\u003e\u003cbr\u003eThe high transmission, sharp cutoffs, and more moderate 60nm passband of the UHC\/LPR filter retains a more natural view, yet significantly boosts overall contrast. Imagers will appreciate the broader bandpass and inclusion of an extremely efficient H-Alpha passband (656nm).\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOur 2\" Light Pollution Reduction (LPR) Filters are designed to selectively reduce the transmission of certain wavelengths of light, specifically those produced by artificial light\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eIn the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCelestron 2\" UHC\/LPR Filter\u003c\/li\u003e\n\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","brand":"Celestron","offers":[{"title":"Default Title","offer_id":43125764292837,"sku":"CEL-94124","price":174.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/celestron-2-uhclpr-filter-94124-astronomy-plus-1.webp?v=1690484924"},{"product_id":"optolong-l-pro-filter","title":"Optolong L-Pro Filter","description":"\u003ch1\u003eOptolong L-Pro Filter\u003c\/h1\u003e\n\u003cp\u003eThe Optolong L-Pro Filter is designed to improve the visibility of various deepsky objects. By selectively reducing the transmission of wavelengths of light pollutants, specifically those produced by artificial lightings including mercury vapor lamps, both high \u0026amp; low pressure sodium vapor lights and the unwanted natural light caused by neutral oxygen emission in our atmosphere (i.e. skyglow). Together with the highly transparent in main nebula emission lines at OIII(496nm and 500nm), H-beta (486nm), NII(654nm and 658nm), H-alpha(656nm) as well as SII(672nm), the filter is suitable for enhancing the contrast and details for both visual and photograghic purpose at sub-rural area with heavy light pollution.\u003c\/p\u003e\n\u003cp\u003eOptolong L-Pro is multi-bandpass filter which offers better color balance by maximizing the transmission band. The balanced transmission allows astrophotos to be taken with minimal color cast to broadband emission objects such as galaxies, reflection nebulae and globular star clusters. L-Pro is the best choice for light pollution suppression.\u003c\/p\u003e\n\u003ch4\u003eMain Use and Performance\u003c\/h4\u003e\n\u003cp\u003eSuitable for visual observation and astrophotography.\u003c\/p\u003e\n\u003cp\u003eL-Pro filter has a very low transmission reduction rate against continuous spectrum space objects, and thus is quite effective in suppressing light pollution sources when shooting galaxies, reflection nebulae and globular star clusters. The same holds true for visual star observations.\u003c\/p\u003e\n\u003cp\u003eL-Pro filter alone can suppress infrared wavelength, and thus can be used at ease for “L” image shootings with CCDs.\u003c\/p\u003e\n\u003cp\u003eLight pollution filter do 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\u003eWARNING: The filters of Optolong are not designed for sun observation. DO NOT LOOK AT THE SUN WITH OPTOLONG FILTER. You would be BLIND if you fail to observe the warning.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSchott substrate material\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThickness 2.0 mm (1.25”\/2”\/77mm) | 1.0 mm (Clip series)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eSurface Quality: 60\/40 (Refer to MIL-O-13830)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eFine-optically polished to ensure accurate 1\/4 wavefront and \u0026lt; 30 seconds parallelism over the both surfaces\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eHigh transmission at major nebula emission lines (i.e. H-alpha 656nm, OIII 496nm\u0026amp;500nm, SII 672nm and H-beta 486nm).\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003ePrecision off-band blocking, specifically the major emission lines of artificial light pollution (i.e. Na 589nm, Hg 435nm and 578nm).\u003c\/span\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSONY COMPATIBILITY (pre-2023) :\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOptolong Sony-FF clip filter available for below camera body:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA7M\/ A7M2\/ A7M3、A7R\/ A7R2\/ A7R3、A7S\/ A7S2\/ A7S3、A9\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApplicable Lenses: Full range of E-mount main and auxiliary lens  \u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003eCoating Technology\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eMulti-layers anti-reflection coating\u003c\/li\u003e\n\u003cli\u003eNon-cementing optical substrate coating\u003c\/li\u003e\n\u003cli\u003eOptolong L-Pro filter adopts precision coating based on Ion-assisted deposition coating technology for durability and resistance to scratching, as well as stability on CWL(central wavelength) no deviation affected by temperature change.\u003c\/li\u003e\n\u003cli\u003ePlanetary rotation system offers precision and homogeneity of coatings ensuring high value on transmission of pass-band and Optical density of off-band.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIn the Box\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eL-Pro Filter\u003c\/p\u003e\n\u003ch3\u003eManual \u0026amp; Warranty\u003c\/h3\u003e\n\u003cp\u003eOptolong 3-Years Warranty\u003c\/p\u003e","brand":"Optolong","offers":[{"title":"1.25\" Mounted","offer_id":43697571135717,"sku":"OL-L-PRO-1.25","price":208.0,"currency_code":"CAD","in_stock":true},{"title":"2\" Mounted","offer_id":43697571168485,"sku":"OL-L-PRO-2","price":278.0,"currency_code":"CAD","in_stock":true},{"title":"Clip for Canon EOS APS-C","offer_id":43697571201253,"sku":"OL-L-PRO-EOS-APS-C","price":349.0,"currency_code":"CAD","in_stock":true},{"title":"Clip for Canon EOS Full Frame","offer_id":43697571234021,"sku":"OL-L-PRO-EOS-FF","price":377.0,"currency_code":"CAD","in_stock":true},{"title":"Clip for Nikon Z full frame","offer_id":48076843188453,"sku":"OL-L-PRO-NK-Z","price":349.0,"currency_code":"CAD","in_stock":true},{"title":"Clip for Nikon Full Frame","offer_id":43697571266789,"sku":"OL-L-PRO-NK-FF","price":377.0,"currency_code":"CAD","in_stock":true},{"title":"Sony Full Frame (2023 Version) \/ Check compatibility","offer_id":43697571332325,"sku":"OL-L-PRO-SN-FF","price":250.0,"currency_code":"CAD","in_stock":true},{"title":"EOS-R","offer_id":46339805970661,"sku":"","price":349.0,"currency_code":"CAD","in_stock":true},{"title":"77mm Round Mounted","offer_id":43697571299557,"sku":"OL-L-PRO-77","price":405.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/optolong-l-pro-filter-astronomy-plus-1.webp?v=1690485403"},{"product_id":"optolong-uhc-light-pollution-filter","title":"Optolong UHC Light Pollution Filter","description":"\u003ch2\u003eOptolong UHC Light Pollution Filter\u003c\/h2\u003e\n\u003cp\u003eThe UHC (Ultra High Contrast) broadband filter is designed to improve the visibility of various deepsky objects. By selectively reducing the transmission of wavelengths of light pollutants, specifically those produced by artificial lightings including mercury vapor lamps, both high \u0026amp; low pressure sodium vapor lights and the unwanted natural light caused by neutral oxygen emission in our atmosphere (i.e. skyglow). Together with the highly transparent in main nebula emission lines at OIII(496nm and 500nm), H-beta (486nm), NII(654nm and 658nm), H-alpha(656nm) as well as SII(672nm), the filter is suitable for enhancing the contrast and details for both visual and photograghic purpose at sub-rural area with heavy light pollution.\u003c\/p\u003e\n\u003cp\u003eMain Use and Performance\u003c\/p\u003e\n\u003cp\u003eSuitable for color CCD cameras and unmodified DSLRs.\u003c\/p\u003e\n\u003cp\u003eUHC with narrower passband provides higher contrast than CLS. Thus it is more suitable for urban environment where you suffer from severe light pollution.\u003c\/p\u003e\n\u003cp\u003eUHC has a substantial red passband and offer superb views for objects like the Orion Nebula (M42).\u003c\/p\u003e\n\u003cp\u003eLight pollution filter do 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\u003eWARNING: The filters of Optolong are not designed for sun observation.\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cstrong\u003eDO NOT LOOK AT THE SUN WITH OPTOLONG FILTER\u003c\/strong\u003e\u003c\/em\u003e. You would be BLIND if you fail to observe the warning.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSubstrate: optical glass\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eTave\u0026gt;95%\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eBlocking range: 300-700nm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eBlcoking depth: OD3, light pollution line blocking \u0026gt;99%\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eSurface quality: 60\/40 (Refer to MIL-O-13830A, MIL-C-48497A)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eTransmitted Wavefront RMS:  ¼ λ\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eParallelism: 30s\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cp\u003eFilter\u003c\/p\u003e\n\u003ch3\u003eManuals \u0026amp; Warranty\u003c\/h3\u003e\n\u003cp\u003eOptolong 3-Year Warranty\u003c\/p\u003e","brand":"Optolong","offers":[{"title":"1.25\" Mounted","offer_id":43697824891109,"sku":"OL-UHC-1.25","price":77.0,"currency_code":"CAD","in_stock":true},{"title":"2\" Mounted","offer_id":43697824923877,"sku":"OL-UHC-2","price":119.0,"currency_code":"CAD","in_stock":true},{"title":"M77 Mounted","offer_id":43697824956645,"sku":"OL-UHC-77","price":265.0,"currency_code":"CAD","in_stock":true},{"title":"Canon EOS-C Clip","offer_id":43697824989413,"sku":"OL-UHC-EOS-C","price":133.0,"currency_code":"CAD","in_stock":true},{"title":"Canon EOS FF Clip","offer_id":43697825022181,"sku":"OL-UHC-EOS-FF","price":161.0,"currency_code":"CAD","in_stock":true},{"title":"Nikon FF Clip","offer_id":43697825054949,"sku":"OL-UHC-NK-FF","price":161.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/optolong-uhc-light-pollution-filter-astronomy-plus_fbccad76-0732-4a71-aef7-04134f1b4a9c.jpg?v=1690487282"},{"product_id":"optolong-cls-ccdcity-light-suppression-broadband-filter","title":"Optolong CLS-CCD(City Light Suppression) Broadband Filter","description":"\u003ch2\u003eOptolong CLS CCD (City Light Suppression) Broadband Filter\u003c\/h2\u003e\n\u003cp\u003eThe CLS (City Light Suppression) broadband filter is designed to improve the visibility of various deepsky objects. By selectively reducing the transmission of wavelengths of light pollutants, specifically those produced by artificial lightings including mercury vapor lamps, both high \u0026amp; low pressure sodium vapor lights and the unwanted natural light caused by neutral oxygen emission in our atmosphere (i.e. skyglow). Together with the highly transparent in main nebula emission lines at OIII(496nm and 500nm), H-beta (486nm), NII(654nm and 658nm), H-alpha(656nm) as well as SII(672nm), the filter is suitable for enhancing the contrast and details for both visual and photographic purpose at sub-rural area.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMain Use\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSuitable for color CCD cameras and unmodified DSLRs.\u003c\/p\u003e\n\u003cp\u003eCLS with wider pass-band than UHC and hence is more favored when observing under mild to moderate light pollution.\u003c\/p\u003e\n\u003cp\u003eLight pollution filter do 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\u003eWARNING: The filters of Optolong are not designed for sun observation. DO NOT LOOK AT THE SUN WITH OPTOLONG FILTER. You would be BLIND if you fail to observe the warning.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications  \u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSbustrate: Optical glass\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThickness: 1.85mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eTave:  T\u0026gt;90%\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eBlocking range: 400-700nm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eBlcoking depth: light pollution  line blocking \u0026gt;99%\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eSurface quality: 60\/40\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eTransmitted Wavefront RMS: λ\/4\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eParallelism: 30s\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eIn the Box\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan mce-data-marked=\"1\"\u003eFilter\u003c\/span\u003e\u003c\/p\u003e","brand":"Optolong","offers":[{"title":"1.25\"","offer_id":43693204865253,"sku":"OL-CLS-CCD-1.25","price":133.0,"currency_code":"CAD","in_stock":true},{"title":"2\"","offer_id":43693204898021,"sku":"OL-CLS-CCD-2","price":223.0,"currency_code":"CAD","in_stock":true},{"title":"EOS-C","offer_id":46339850535141,"sku":"OL-CLS-CCD-EOSC","price":161.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/optolong-cls-ccd-city-light-suppression-broadband-filter-astronomy-plus_a104e94a-31bc-4ec0-99c9-86af2f3d231a.png?v=1690487285"},{"product_id":"idas-lps-d3-filter","title":"IDAS NGS1 (ex LPS-D3) filter","description":"\u003ch2\u003eIDAS NGS1 \/ LPS-D3 filter\u003c\/h2\u003e\n\u003cp\u003eIDAS LPS-D3(formerly NGS1) filters enhance the contrast of astronomical emission nebulae against a sky with both man-made and natural* sky glow sources, yet preserve color balance of broadband objects such as galaxies. As with other IDAS interference filters, the bandpasses are designed to accommodate the steep ray angles of fast optical systems. \u003cimg src=\"https:\/\/www.sciencecenter.net\/hutech\/idas\/ngs1\/LPS-D3-measured.jpg\" width=\"512\" height=\"335\"\u003e \u003cimg src=\"https:\/\/www.sciencecenter.net\/hutech\/idas\/ngs1\/LPS-D3.jpg\" width=\"513\" height=\"325\"\u003e\u003c\/p\u003e\n\u003ch3\u003eTechnical Specification\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIdeal flat-top and moderate bandpass\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eExcellent in-band transmission\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eSteep bandpass edges minimize internal reflections\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eNear IR (NIR) is blocked up to 1200nm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eAvailable in 52mm and 48mm sizes\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e2.5mm thickness (parfocal with other IDAS LPS filters)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eIDAS-proprietary IGAD\/MBT\/UFP quality\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eMade in Japan\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eIn the Box\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eLPS-D3 Filter\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eManual \u0026amp; Warranty\u003c\/h3\u003e\n\u003cp\u003eIDAS 3-Year Warranty\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"IDAS","offers":[{"title":"48mm mounted","offer_id":43673368625381,"sku":"IDA-LPS-D3-48ST2","price":245.0,"currency_code":"CAD","in_stock":true},{"title":"52mm mounted","offer_id":43673368690917,"sku":"IDA-LPS-D3-52ST2","price":277.0,"currency_code":"CAD","in_stock":true},{"title":"Di2 mounted","offer_id":43673368723685,"sku":"IDA-LPS-D3-DI2","price":277.0,"currency_code":"CAD","in_stock":true},{"title":"DRT for Canon EF-EOSR","offer_id":43673368756453,"sku":"IDA-LPS-D3-DRT","price":347.0,"currency_code":"CAD","in_stock":true},{"title":"DZ to use with the ZWO M54 Filter Drawer","offer_id":43673368789221,"sku":"IDA-LPS-D3-DZ","price":297.0,"currency_code":"CAD","in_stock":true},{"title":"ZF for use with ZWO cams","offer_id":47817078636773,"sku":"IDA-LPS-D3-ZF","price":245.0,"currency_code":"CAD","in_stock":true},{"title":"DS for IDAS AD42-DS","offer_id":47819598299365,"sku":"IDA-LPS-D3-DS","price":297.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/idas-lps-d3-filter-replaced-by-lps-c1-astronomy-plus.png?v=1690487661"},{"product_id":"astronomik-cls-ccd-filter","title":"Astronomik CLS-CCD filter","description":"\u003ch2\u003eAstronomik CLS-CCD filter\u003c\/h2\u003e\n\u003cp\u003eThe Astronomik CLS CCD is suitable under light-polluted skies for DSLR Cameras, which have been remodeled for astronomical use. The filter enhances the contrast between all deep-sky objects and the background. The CLS-CCD Filter enhances the contrast between astronomical objects and the background. Due to the wider transmission curve compared to UHC filters, a greater amount of light will pass the filter. Stars will be less dimmed. This filter has been optimized to block as much spurious light as possible and simultaneously provide the best performance for 'useful' light. A good filter for DSLR-, CCD- and film b\/w-photography as well as observation of deep-sky-objects with telescopes or photo lenses of all aperture f\/2 and above.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eMain use\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThe filter blocks completely emission lines of artificial light sources like streetlights (e.g. sodium- and mercury-vapor) as well as the airglow. All 'important' emission lines as well as the spectral range of the night-adapted eye are being passed. The supplementary IR-blocking layer allows the use of DSLR- and Webcams without an integrated IR-block filter.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOther uses\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEasier resolution of Double Stars.\u003c\/li\u003e\n\u003cli\u003eWith the EOS-Clip model, photography with DSLR cameras is feasible even under extreme light-polluting conditions without shifting the white balance.\u003c\/li\u003e\n\u003cli\u003eThe 1,25\" and 2\" socket models can be used for observations from light-polluted areas.\u003c\/li\u003e\n\u003cli\u003eIf you plan to create color images from emission line data, our CLS-CCD filter is a great choice for the Luminance channel\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eAlternatives\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eCLS: For cameras with an integrated IR-filter or for visual observation.\u003c\/p\u003e\n\u003ch4\u003eSuitability of the Astronomik CLS CCD filters\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCMOS and CCD photography\u003c\/strong\u003e: Very good blocking of light-pollution\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 close to perfect\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDSLR photography (MC-modified)\u003c\/strong\u003e: Very good, color balance is close to perfect\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eClip-Filters for mirrorless Canon EOS R APS-C cameras\u003c\/h4\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\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\u003e95% transmission at 486nm (H-beta)\u003c\/li\u003e\n\u003cli\u003e95% transmission at 496nm (OIII)\u003c\/li\u003e\n\u003cli\u003e95% transmission at 501nm (OIII)\u003c\/li\u003e\n\u003cli\u003e97% transmission at 656nm (H-alpha)\u003c\/li\u003e\n\u003cli\u003eTransmission range: 450 to 520nm and 640 to 690nm\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-CCD filter, at selected size. \u003c\/p\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\n\u003cp\u003e \u003c\/p\u003e","brand":"Astronomik","offers":[{"title":"1.25\"","offer_id":43458866708709,"sku":"AK-8H00DP","price":135.0,"currency_code":"CAD","in_stock":true},{"title":"2\"","offer_id":43458866741477,"sku":"AK-8H00DQ","price":312.0,"currency_code":"CAD","in_stock":true},{"title":"31mm Round","offer_id":43458866774245,"sku":"AK-8H00FG","price":176.0,"currency_code":"CAD","in_stock":true},{"title":"36mm Round","offer_id":43458866807013,"sku":"AK-8H00FH","price":189.0,"currency_code":"CAD","in_stock":true},{"title":"50mm Round","offer_id":43458866839781,"sku":"AK-8H00EH","price":312.0,"currency_code":"CAD","in_stock":true},{"title":"50 mm Square","offer_id":43458866872549,"sku":"AK-8H00EK","price":325.0,"currency_code":"CAD","in_stock":true},{"title":"Clip-Filter EOS APS-C","offer_id":43458866905317,"sku":"AK-8H00DN","price":216.0,"currency_code":"CAD","in_stock":true},{"title":"Canon EOS XL","offer_id":43458866938085,"sku":"AK-8H00LD","price":325.0,"currency_code":"CAD","in_stock":true},{"title":"EOS M Clip","offer_id":43458866970853,"sku":"AK-8H00R7","price":216.0,"currency_code":"CAD","in_stock":true},{"title":"EOS R APS-C","offer_id":48894932484325,"sku":"AK-8h11va","price":257.0,"currency_code":"CAD","in_stock":true},{"title":"EOS XT Clip EOS APS-C","offer_id":43458867003621,"sku":"AK-8H00KF","price":244.0,"currency_code":"CAD","in_stock":true},{"title":"Nikon XL Clip","offer_id":43458867036389,"sku":"AK-8H11AT","price":325.0,"currency_code":"CAD","in_stock":true},{"title":"Nikon Z XL Clip","offer_id":43458867069157,"sku":"AK-8H11KY","price":339.0,"currency_code":"CAD","in_stock":true},{"title":"Pentax K-1 Clip","offer_id":43458867101925,"sku":"AK-8H11EG","price":339.0,"currency_code":"CAD","in_stock":true},{"title":"SC Rear Cell","offer_id":43458867134693,"sku":"AK-8H00EF","price":339.0,"currency_code":"CAD","in_stock":true},{"title":"T-Thread","offer_id":43458867167461,"sku":"AK-8H00ED","price":257.0,"currency_code":"CAD","in_stock":true},{"title":"Clip-filter EOS R XL","offer_id":44127478677733,"sku":"AK-8h11ga","price":339.0,"currency_code":"CAD","in_stock":true},{"title":"Clip-filter Sony Alpha 7","offer_id":44127478710501,"sku":"AK-8h00xb","price":325.0,"currency_code":"CAD","in_stock":true},{"title":"M49","offer_id":44127539658981,"sku":"AK-8h00tt","price":312.0,"currency_code":"CAD","in_stock":true},{"title":"M52","offer_id":44127539691749,"sku":"AK-8h00tu","price":325.0,"currency_code":"CAD","in_stock":true},{"title":"M55","offer_id":44127539724517,"sku":"AK-8h00tv","price":679.0,"currency_code":"CAD","in_stock":true},{"title":"M58","offer_id":44127539757285,"sku":"AK-8h00tw","price":679.0,"currency_code":"CAD","in_stock":true},{"title":"M62","offer_id":44127539790053,"sku":"AK-8h00tx","price":707.0,"currency_code":"CAD","in_stock":true},{"title":"M67","offer_id":44127539822821,"sku":"AK-8h00ty","price":720.0,"currency_code":"CAD","in_stock":true},{"title":"M72","offer_id":44127539855589,"sku":"AK-8h00em","price":720.0,"currency_code":"CAD","in_stock":true},{"title":"M77","offer_id":44127539888357,"sku":"AK-8h00u0","price":720.0,"currency_code":"CAD","in_stock":true},{"title":"27mm unmounted","offer_id":44127553585381,"sku":"AK-8h00l4","price":135.0,"currency_code":"CAD","in_stock":true},{"title":"42mm unmounted","offer_id":44127553618149,"sku":"AK-8h11b4","price":216.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/astronomik-cls-ccd-filter-astronomy-plus-1.jpg?v=1690487958"},{"product_id":"optolong-clscity-light-suppression-broadband-filter","title":"Optolong CLS(City Light Suppression) Broadband Filter","description":"\u003ch2\u003eOptolong CLS (City Light Suppression) Broadband Filter\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e1.  Optolong CLS Introduction\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe CLS (City Light Suppression) broadband filter is designed to improve the visibility of various deepsky objects. By selectively reducing the transmission of wavelengths of light pollutants, specifically those produced by artificial lightings including mercury vapor lamps, both high \u0026amp; low pressure sodium vapor lights and the unwanted natural light caused by neutral oxygen emission in our atmosphere (i.e. skyglow). Together with the highly transparent in main nebula emission lines at OIII(496nm and 500nm), H-beta (486nm), NII(654nm and 658nm), H-alpha(656nm) as well as SII(672nm), the filter is suitable for enhancing the contrast and details for both visual and photograghic purpose at sub-rural area.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMain Use\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSuitable for color CCD cameras and unmodified DSLRs.\u003c\/p\u003e\n\u003cp\u003eCLS with wider pass-band than UHC and hence is more favored when observing under mild to moderate light pollution.\u003c\/p\u003e\n\u003cp\u003eLight pollution filter do 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\u003eWARNING: The filters of Optolong are not designed for sun observation. DO NOT LOOK AT THE SUN WITH OPTOLONG FILTER. You would be BLIND if you fail to observe the warning.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications  \u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e2. Optolong CLS Spectrum and Characteristic\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eSbustrate: Optical glass\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThickness: 1.85mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eTave:  T\u0026gt;90%\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eBlocking range: 400-700nm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eBlcoking depth: light pollution  line blocking \u0026gt;99%\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eSurface quality: 60\/40\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eTransmitted Wavefront RMS: λ\/4\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eParallelism: 30s\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eIn the Box\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan\u003eFilter\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Optolong","offers":[{"title":"1.25\"","offer_id":43693201031397,"sku":"OL-CLS-125","price":77.0,"currency_code":"CAD","in_stock":true},{"title":"2\"","offer_id":43693201064165,"sku":"OL-CLS-2","price":119.0,"currency_code":"CAD","in_stock":true},{"title":"EOS-C","offer_id":46339833921765,"sku":"OL-CLS-EOSC","price":133.0,"currency_code":"CAD","in_stock":true},{"title":"EOS-FF","offer_id":46339850109157,"sku":"OL-CLS-EOSFF","price":161.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/optolong-cls-city-light-suppression-broadband-filter-astronomy-plus_1aaa9d09-d4d7-40f3-9581-691b1a81cbef.png?v=1690488207"},{"product_id":"idas-gnb-galaxy-nebula-filters","title":"IDAS GNB Galaxy \u0026 Nebula Filters","description":"\u003ch2\u003eIDAS GNB Galaxy \u0026amp; Nebula Filters\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCapturing Ha \u0026amp; OIII emission lines as well as the galaxy’s broadband signal in NIR at same time\u003c\/li\u003e\n\u003cli\u003eAvailable at M28.6(1.25″) and ZF (for ZWO, QHY \u0026amp; Player One)\u003c\/li\u003e\n\u003cli\u003eBest match with Player One Uranus-C and Neptune-C II\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan class=\"style88\"\u003eThe IDAS GNB filter passes through the Ha and OIII regions in the same manner as of the IDAS NBZ to suppress light pollutions in the visible light regions. Unlike any other filters available in the market, the GNB at the same time passes through the near infrared region intended for shooting galaxies that cannot be shot with any comventional nebula filters.\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003eThe idea of designing this filter is based on the fact that the near infrared region can be hardly affected by artifical light pollution sources.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eNotes:\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eWe recommend the use with a NIR-enhanced sensor such as IMX585 and IMX464 especially where the GNB is used in a heavly light-polluted location.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThe GNB filter will enhance the colorfulness of galaxies when used with a conventional sensor (such as IMX294).\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan class=\"style3\"\u003en.b. on halos:\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eOptical filters such as IDAS GNB and DTD utilizing infrared tend to cause haloing in the NUV and NIR regions. This is because the anti-reflection properties of off-the-shelf cameras' optical systems (oiptical window and sensor cover glass) are optimized for the visible spectrum only, not for the NIR region. Thus, haoling at the camera end in the unoptimized region becomes more apparent, coupled with haloing from the filter itself.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eHere is a rough estimation of the magnitude of haoling where the haloing maginute of NBZ (NBZex) is counted as 1:\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eGNB + IMX294 sensor results in 8.0 times\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eGNB + IMX585 sensor results in 6.3 times\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/gnb_imx294.png?v=1717010440\" width=\"1314\" height=\"768\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eM33 Shot with GNB + IMX294\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/M33GNB1m-avr97cc.png?v=1717007617\" width=\"1388\" height=\"910\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/M33GNB1m-avr97cc.png?v=1717007617\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; height: 235.125px;\" border=\"0\" cellspacing=\"0\"\u003e\n\u003ccolgroup width=\"266\"\u003e\u003c\/colgroup\u003e \u003ccolgroup width=\"255\" span=\"2\"\u003e\u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 33.7289%; height: 19.5938px;\" valign=\"bottom\" align=\"center\" height=\"18\"\u003e\u003cb\u003e\u003cspan style=\"color: #000000;\"\u003eDiameter \u0026amp; Use\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 32.4583%; height: 19.5938px;\" valign=\"bottom\" align=\"center\"\u003e\u003cb\u003e\u003cspan style=\"color: #000000;\"\u003eSubstrat thickness\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 31.3907%; height: 19.5938px;\" valign=\"bottom\" align=\"center\"\u003e\u003cb\u003e\u003cspan style=\"color: #000000;\"\u003eModel name\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 33.7289%; height: 19.5938px;\" valign=\"middle\" align=\"center\" height=\"18\"\u003e\u003cspan style=\"color: #000000;\"\u003e28,6 mm\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 32.4583%; height: 19.5938px;\" valign=\"middle\" align=\"center\"\u003e\u003cspan style=\"color: #000000;\"\u003e2 mm\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 31.3907%; height: 19.5938px;\" valign=\"middle\" align=\"center\"\u003e\u003cspan style=\"color: #000000;\"\u003eGNB-28.6 \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 33.7289%; height: 19.5938px;\" valign=\"middle\" align=\"center\" height=\"18\"\u003e\u003cspan style=\"color: #000000;\"\u003e48 mm\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 32.4583%; height: 19.5938px;\" valign=\"middle\" align=\"center\"\u003e\u003cspan style=\"color: #000000;\"\u003e2mm\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 31.3907%; height: 19.5938px;\" valign=\"middle\" align=\"center\"\u003e\u003cspan style=\"color: #000000;\"\u003eGNB-48ST2\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 33.7289%; height: 19.5938px;\" valign=\"middle\" align=\"center\" height=\"18\"\u003e\u003cspan style=\"color: #000000;\"\u003e52 mm\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 32.4583%; height: 19.5938px;\" valign=\"middle\" align=\"center\"\u003e\u003cspan style=\"color: #000000;\"\u003e2mm\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 31.3907%; height: 19.5938px;\" valign=\"middle\" align=\"center\"\u003e\u003cspan style=\"color: #000000;\"\u003eGNB-52ST2\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 97.9688px;\"\u003e\n\u003ctd style=\"width: 33.7289%; height: 97.9688px;\" valign=\"middle\" align=\"left\" height=\"18\"\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: IDAS DRE Filter\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 32.4583%; height: 97.9688px;\" valign=\"middle\" align=\"center\"\u003e\u003cspan style=\"color: #000000;\"\u003eN\/A\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 31.3907%; height: 97.9688px;\" valign=\"middle\" align=\"center\"\u003e\u003cspan style=\"color: #000000;\"\u003eGNB-DRE\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 58.7812px;\"\u003e\n\u003ctd style=\"width: 33.7289%; height: 58.7812px;\" valign=\"middle\" align=\"left\" height=\"18\"\u003e\u003cspan style=\"color: #000000;\"\u003eFor use with ZWO cams (back-focus of 6.5mm) and also IDAS AD19.4 drop-in filter mount\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 32.4583%; height: 58.7812px;\" valign=\"middle\" align=\"center\"\u003e\u003cspan style=\"color: #000000;\"\u003eN\/A\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 31.3907%; height: 58.7812px;\" valign=\"middle\" align=\"center\"\u003e\u003cspan style=\"color: #000000;\"\u003eGNB-ZF \u003c\/span\u003e\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\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cp\u003e\u003cspan mce-data-marked=\"1\"\u003eIDAS GNB Filter - at selected size :\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan mce-data-marked=\"1\"\u003e28,6mm (\u003cspan style=\"color: #000000;\"\u003eGNB-28.6)\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan mce-data-marked=\"1\"\u003e48mm (\u003cspan style=\"color: #000000;\"\u003eGNB-48ST2)\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan mce-data-marked=\"1\"\u003e52mm (\u003cspan style=\"color: #000000;\"\u003eGNB-52ST2)\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan mce-data-marked=\"1\"\u003eFItting for Canon EF-OESR (\u003cspan style=\"color: #000000;\"\u003eGNB-DRE)\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan mce-data-marked=\"1\"\u003eFitting for ZWO cameras of 6.5mm back focus (\u003cspan style=\"color: #000000;\"\u003eGNB-ZF)\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\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":"M48 (2\")","offer_id":44007990165733,"sku":"IDA-GNB-48ST2","price":347.0,"currency_code":"CAD","in_stock":true},{"title":"M52","offer_id":45659116634341,"sku":"IDA-GNB-52ST2","price":417.0,"currency_code":"CAD","in_stock":true},{"title":"DRE for Canon EF-EOSR","offer_id":45659116667109,"sku":"IDA-GNB-DRT","price":459.0,"currency_code":"CAD","in_stock":false},{"title":"ZF for ZWO cameras (1.1 mm thickness)","offer_id":44007990132965,"sku":"IDA-GNB-ZF","price":316.0,"currency_code":"CAD","in_stock":true},{"title":"DS for IDAS AD42-DS","offer_id":47819522801893,"sku":"IDA-GNB-DS","price":417.0,"currency_code":"CAD","in_stock":false},{"title":"DZ for ZWO FD-M54-II","offer_id":47819589124325,"sku":"IDA-GNB-DZ","price":409.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/idas-gnb-galaxy-and-nebula-filters-astronomy-plus-1.webp?v=1690489638"},{"product_id":"idas-2-nbz-ii-10nm-ha-8nm-oiii-dual-band-filter","title":"IDAS 2\" NBZ-II 10nm Ha \u0026 8nm OIII Dual Band Filter","description":"\u003ch2 data-mce-fragment=\"1\"\u003eIDAS 2\" NBZ-II 10nm Ha \u0026amp; 8nm OIII Dual Band Filter\u003c\/h2\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe IDAS NBZ-II is a new dual band nebula booster filter - the successor to the NBZ (NBZex) filter. The FWHM of the NBZ-II is 8nm (+\/=0.4nm) at OIII, and 10nm (+\/-0.4nm) at H-alpha respectively. This has the same anti-Haloing characteristics as the NBZ did. A test report of the actually measured optical properties is provided with each individual NBZ-II filter piece shipped.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe transmittance curve of interference filters will naturally shift towards the shorter wave length side against oblique light incidence, and this tendency will be more noticeable as the inncidence angle becomes higher as shown in the 3rd photo above.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eSome of the competitive 7nm or narrower filters will decrease in transmittance by 50% or more when used in a fast optical system (around F2), while the NBZ=II retains 80% or more of the transmittance under the same conditions.\u003c\/p\u003e\n\u003cp id=\"G0OU7F6\" data-mce-fragment=\"1\"\u003eThe shift tendency will be stronger in optical systems that have a central obstruction. Taking this into consideration, we have designed the NBZ-II as you can see from the simulation in the 4th photo above.\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2\" mounted; M48mm x 0.75mm\u003c\/li\u003e\n\u003cli\u003eGlass thickness: 2.0mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNBZ II Filter\u003c\/li\u003e\n\u003cli\u003eIndividual spectrographic test report\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 data-mce-fragment=\"1\"\u003e \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e \u003c\/p\u003e","brand":"IDAS","offers":[{"title":"48mm","offer_id":45659531542757,"sku":"IDA-NBZ-II-48ST2","price":417.0,"currency_code":"CAD","in_stock":true},{"title":"52mm","offer_id":47816626962661,"sku":"IDA-NBZ-II-52ST2","price":445.0,"currency_code":"CAD","in_stock":true},{"title":"Di2 drop in filter","offer_id":45659531575525,"sku":"IDA-NBZ-II-Di2","price":445.0,"currency_code":"CAD","in_stock":true},{"title":"DRT for Canon EF-EOSR","offer_id":45659531608293,"sku":"IDA-NBZ-II-DRT","price":487.0,"currency_code":"CAD","in_stock":true},{"title":"DZ for use with ZWO cams","offer_id":47816617394405,"sku":"IDA-NBZ-II-DZ","price":417.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/idas-2-nbz-ii-10nm-ha-and-8nm-oiii-dual-band-filter-astronomy-plus-1.png?v=1715808232"},{"product_id":"baader-astrosolar-photo-film-od-3-8-2459278","title":"Baader AstroSolar Photo Film OD 3.8","description":"\u003ch2\u003eBaader AstroSolar Photo Film OD 3.8\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAstroSolar Photo Film (\u003cstrong\u003e\u003cem\u003eimaging only\u003c\/em\u003e\u003c\/strong\u003e), telescope quality, Optical Density OD = 3.8\u003c\/li\u003e\n\u003cli\u003eDigital solar imaging at highest magnifications and short exposure times. Not suitable for visual observation\u003c\/li\u003e\n\u003cli\u003eThis highest precision film consistently produces strehl ratios of 94 to 96 percent at interferometric tests – thus it performs optically like a Fluorite Triplet Lens by Carl Zeiss or Astro Physics\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"text-align: center;\"\u003e___________________________________________________\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"display: inline !important; float: none; background-color: #ffffff; color: #212b36; font-family: -apple-system,BlinkMacSystemFont,San Francisco,Segoe UI,Roboto,Helvetica Neue,sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; -webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px;\" data-mce-style=\"display: inline !important; float: none; background-color: #ffffff; color: #212b36; font-family: -apple-system,BlinkMacSystemFont,San Francisco,Segoe UI,Roboto,Helvetica Neue,sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; -webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px;\"\u003e\u003cspan style=\"color: #ff2a00;\" data-mce-style=\"color: #ff2a00;\"\u003eDANGER: Not suitable for visual observation - eye injury will result from any visual use, including viewing through the optical viewfinder on a DSLR\u003c\/span\u003e\u003cspan style=\"background-color: transparent;\" data-mce-style=\"background-color: transparent;\"\u003e\u003cspan style=\"color: #ff2a00;\" data-mce-style=\"color: #ff2a00;\"\u003e.\u003c\/span\u003e  \u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAstroSolar Photo Film OD 3.8 is only intended to be used by well-experienced Astro-imagers. This material is not intended to serve for protection during visual solar observation.\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e____________________________________________________\u003c\/p\u003e\n\u003cp\u003eBaader AstroSolar™ Safety Film (Patent pending in all European States - voted for \"Astro-Product of the Decade\" in the USA, and Sky and Telescope's Sept 2000 Review \"A New Standard in Solar Filters\") Baader Planetarium's AstroSolar™ Safety Film delivers white light views of the Sun that are unmatched by any other objective solar filter or material. The views through AstroSolar display fine solar details, including fine penumbral detail, solar granulation, and lighter colored faculae. The disk is set against a dark background, free of the haze and scatter that is common in typical metallized 'mylar', smoked films, or inexpensive glass filters.\u003c\/p\u003e\n\u003cp\u003eIt is possible to further improve the stability and sharpness of the solar image through the use of the Baader Solar Continuum Filter. Views of granulation and faculae are particularly enhanced through the use of this filter, in combination with AstroSolar. Users of achromatic refractors will be particularly pleased with the performance using this additional filter.\u003c\/p\u003e\n\u003ch4\u003eSafety Information\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ca href=\"http:\/\/astrosolar.com\/en\/information\/safety-instruction\/safety-warning-how-to-protect-your-eyes\/\" target=\"_blank\"\u003eSafety Warning\u003c\/a\u003e\u003c\/strong\u003e\u003ca href=\"http:\/\/astrosolar.com\/en\/information\/safety-instruction\/safety-warning-how-to-protect-your-eyes\/\" target=\"_blank\"\u003e - \u003cstrong\u003eHow to Protect Your Eyes\u003c\/strong\u003e\u003c\/a\u003e\u003cstrong\u003e \u003c\/strong\u003e(link to Safety Information)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cb\u003e\u003ca href=\"http:\/\/astrosolar.com\/en\/information\/safety-instruction\/safety-precautions-how-to-prevent-accidents\/\" target=\"_blank\"\u003e\u003cspan size=\"4\" color=\"#006699\"\u003eSafety Precautions \u003c\/span\u003e\u003cspan color=\"#006699\"\u003e-  How to Prevent Accidents\u003c\/span\u003e\u003c\/a\u003e\u003c\/b\u003e\u003cspan size=\"4\"\u003e\u003cb\u003e \u003c\/b\u003e\u003c\/span\u003e(link to Safety Precautions)\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eA4-size: ca. 20 x 29 cm (8\" x 12\")\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ctable style=\"width: 100%; height: 156.75px;\" id=\"product-attribute-specs-table\" class=\"data-table\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"width: 33.193%; height: 19.5938px;\" class=\"label\"\u003eWEIGHT (KG)\u003c\/th\u003e\n\u003ctd style=\"width: 63.8766%; height: 19.5938px;\" class=\"data\"\u003e0.007\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003cth style=\"width: 33.193%; height: 39.1875px;\" class=\"label\"\u003eUSAGE\u003c\/th\u003e\n\u003ctd style=\"width: 63.8766%; height: 39.1875px;\" class=\"data\"\u003eDigital solar imaging at highest magnifications and short exposure times. Not suitable for visual observation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"width: 33.193%; height: 19.5938px;\" class=\"label\"\u003eASTROSOLAR FILM\u003c\/th\u003e\n\u003ctd style=\"width: 63.8766%; height: 19.5938px;\" class=\"data\"\u003eAstroSolar Photo Film\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"width: 33.193%; height: 19.5938px;\" class=\"label\"\u003eOPTICAL DENSITY\u003c\/th\u003e\n\u003ctd style=\"width: 63.8766%; height: 19.5938px;\" class=\"data\"\u003e3.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003cth style=\"width: 33.193%; height: 39.1875px;\" class=\"label\"\u003eINNER DIAMETER \/ CLEAR APERTURE (MM)\u003c\/th\u003e\n\u003ctd style=\"width: 63.8766%; height: 39.1875px;\" class=\"data\"\u003eca. 20 x 29 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"width: 33.193%; height: 19.5938px;\" class=\"label\"\u003eSOLAR WAVELENGTH\u003c\/th\u003e\n\u003ctd style=\"width: 63.8766%; height: 19.5938px;\" class=\"data\"\u003eWhitelight (integral light)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e100 x 50 cm (40\" x 20\")\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ctable id=\"product-attribute-specs-table\" class=\"data-table\" style=\"width: 100.035%; height: 215.6px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003cth class=\"label\" style=\"width: 34.1977%; height: 19.6px;\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\" style=\"width: 63.1474%; height: 19.6px;\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003cth class=\"label\" style=\"width: 34.1977%; height: 19.6px;\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\" style=\"width: 63.1474%; height: 19.6px;\"\u003e2459280\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003cth class=\"label\" style=\"width: 34.1977%; height: 19.6px;\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\" style=\"width: 63.1474%; height: 19.6px;\"\u003e4047825008541\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003cth class=\"label\" style=\"width: 34.1977%; height: 19.6px;\"\u003eWEIGHT (KG)\u003c\/th\u003e\n\u003ctd class=\"data\" style=\"width: 63.1474%; height: 19.6px;\"\u003e0.032\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2px;\"\u003e\n\u003cth class=\"label\" style=\"width: 34.1977%; height: 39.2px;\"\u003eUSAGE\u003c\/th\u003e\n\u003ctd class=\"data\" style=\"width: 63.1474%; height: 39.2px;\"\u003eDigital solar imaging at highest magnifications and short exposure times. Not suitable for visual observation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003cth class=\"label\" style=\"width: 34.1977%; height: 19.6px;\"\u003eASTROSOLAR FILM\u003c\/th\u003e\n\u003ctd class=\"data\" style=\"width: 63.1474%; height: 19.6px;\"\u003eAstroSolar Photo Film\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003cth class=\"label\" style=\"width: 34.1977%; height: 19.6px;\"\u003eOPTICAL DENSITY\u003c\/th\u003e\n\u003ctd class=\"data\" style=\"width: 63.1474%; height: 19.6px;\"\u003e3.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2px;\"\u003e\n\u003cth class=\"label\" style=\"width: 34.1977%; height: 39.2px;\"\u003eINNER DIAMETER \/ CLEAR APERTURE (MM)\u003c\/th\u003e\n\u003ctd class=\"data\" style=\"width: 63.1474%; height: 39.2px;\"\u003eca. 100 x 50 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003cth class=\"label\" style=\"width: 34.1977%; height: 19.6px;\"\u003eSOLAR WAVELENGTH\u003c\/th\u003e\n\u003ctd class=\"data\" style=\"width: 63.1474%; height: 19.6px;\"\u003eWhitelight (integral light)\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\u003cp\u003eBaader AstroSolar Photo Film OD 3.8, at selected size :\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eA4-size: ca. 20 x 29 cm (8\" x 12\")\u003c\/li\u003e\n\u003cli\u003e100 x 50 cm (40\" x 20\")\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWarranty \u0026amp; Manual\u003c\/h3\u003e\n\u003cp\u003e2-Year Warranty\u003c\/p\u003e\n\u003cdiv aria-hidden=\"false\" role=\"tabpanel\" aria-labelledby=\"st-link-downloads_0-3\" id=\"st-downloads_0-3\" class=\"station-tabs-content is-active\"\u003e\n\u003cdiv class=\"station-tabs-content-inner\"\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/instructions_to_use_astrosolar_film.pdf?v=1590503647\" target=\"_blank\"\u003eInstructions to use AstroSolar Film\u003c\/a\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/how_to_make_your_own_solar_filter_for_cameras_binoculars_and_telescope_8a6e05c5-5004-4706-bc7a-4bf42e0d0deb.pdf?v=1707055867\" target=\"_blank\" data-mce-href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/how_to_make_your_own_solar_filter_for_cameras_binoculars_and_telescope_8a6e05c5-5004-4706-bc7a-4bf42e0d0deb.pdf?v=1707055867\"\u003eHow to make your own PHOTO solar filter for cameras and telescopes\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/testreview_astrosolar_photo_film.pdf?v=1590503653\" target=\"_blank\"\u003eTestreview AstroSolar Photo Film\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c!----\u003e","brand":"Baader Planetarium","offers":[{"title":"A4-size: ca. 20 x 29 cm (8\" x 12\")","offer_id":45780897792229,"sku":"BAA-ASOLP-S (Baader #2459278)","price":53.0,"currency_code":"CAD","in_stock":true},{"title":"100 x 50 cm (40\" x 20\")","offer_id":45780897824997,"sku":"BAA-ASOLP-M (Baader #2459280)","price":134.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/2459278_astrosolar-foto-a4_0915_de_square_869x869_dd537f39-e271-4f4a-bc86-ace5527a0370.webp?v=1718989055"},{"product_id":"baader-sloan-sdss-filters-photometric","title":"Baader SLOAN\/SDSS Filters – Photometric (FSLN)","description":"\u003ch1\u003eBaader SLOAN\/SDSS Filters – Photometric\u003c\/h1\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBaader SLOAN-ugriz' Bandpass Filter Set, suitable from f\/15 to f\/1.8\u003c\/li\u003e\n\u003cli\u003eSLOAN\/SDSS (ugriz’) photometric filters with transmission according to SLOAN-specification\u003c\/li\u003e\n\u003cli\u003eManufactured with most advanced ion beam coating technology \/ Daylight-Proof\u003c\/li\u003e\n\u003cli\u003eReflex-Blocker™ hard coated and planeoptically polished – with sealed coating edges (Life-Coat™)\u003c\/li\u003e\n\u003cli\u003eBlackened edges all around, with filter-lead-side-indicator in the form of a telescope-sided black outer rim\u003c\/li\u003e\n\u003cli\u003eEqually suitable for modern CMOS cameras as well as for older CCD camera technologies\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe new generation of Baader CMOS-optimized filters features:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eReflex-Blocker™ coatings, for largest ever freedom from halos, even under most adverse conditions concerning aux-optics\u003c\/li\u003e\n\u003cli\u003eIdentical filter thickness to existing standards, with utmost care for parfocality\u003c\/li\u003e\n\u003cli\u003eBlackened edges all around, with filter-lead-side-indicator in the form of a black frontside outer rim, to additionally eliminate any reflection due to light falling onto the edge of a filter\u003c\/li\u003e\n\u003cli\u003eEach filter coated individually, with sealed coating edge (NOT cut out of a larger plate with coatings left exposed read more)\u003c\/li\u003e\n\u003cli\u003eLife-Coat™: evermore hard coatings to enable a non-aging coating for life – even in a most adverse environment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable id=\"product-attribute-specs-table\" class=\"data-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eCOLOUR\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eTRANSMISSION RANGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e\u003cspan\u003eTransmission according to SLOAN-Specification\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER THICKNESS (WITHOUT CELL)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e\n\u003cul\u003e\n\u003cli\u003e1.25\/2\/36\/47.4: 2mm Thick\u003c\/li\u003e\n\u003cli\u003e50.4\/50x50\/65x65: 3mm Thick\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eCWL (CENTRAL WAVELENGTH)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e\u003cspan\u003eSLOAN\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eAR-COATING\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eReflex-Blocker™ hard coated, planeoptically polished\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSPECIAL FEATURES\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eLife-Coat™\u003cspan\u003e \u003c\/span\u003eWarranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER SIZE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e1 25 inch, 2 inch, 36 mm, 50.4 mm, 50 x 50 mm, 65 x 65 mm, 100 x 100 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER USAGE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e\u003cspan\u003eSLOAN, CMOS, CCD\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER MOUNTED\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eMounted (LPFC 6mm) \/ Unmounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eTYPE OF FILTER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBandpass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSINGLE OR SET?\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eSingle and Filterset\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eFILTER SHAPE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eround or square\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eWarranty\u003c\/h3\u003e\n\u003cp\u003eBaader 2 year warranty : \u003ca href=\"https:\/\/alpineastro.com\/pages\/returns?srsltid=AfmBOoqAi7RLBqy8sZbq5vne4zdOLwAmKuaaiwr7Os5UK4_ns84HXekz\"\u003eReturns and Warranty Policies — Alpine Astronomical LLC\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLimited-Lifetime-Warranty for CMOS-optimized Baader filters\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA Baader Planetarium exclusive. Filters incorporating Baader Planetarium’s Life-Coat™ technology are so durable that Baader Planetarium warrants the coatings for the life of the filter. Baader Planetarium has developed Life-Coat™ using materials and processes that result in coatings which will not degrade or fail for a lifetime. Life-Coat™ coatings resist moisture, temperature extremes, and are hardened to withstand normal cleanings.\u003c\/p\u003e\n\u003cp\u003eBaader Planetarium guarantees their Life-Coat™ coatings will not peel, flake or physically degrade and will withstand repeated cleaning with fine optical cleaning equipment. The Limited Lifetime Warranty applies to the original purchaser and does not cover failure from mis-use, physical damage through improper handling, or improper cleaning.\u003c\/p\u003e","brand":"Baader Planetarium","offers":[{"title":"u' \/ 1.25 inch","offer_id":46279352123621,"sku":"BAA-FSLN-1U (Baader #2961700U)","price":225.0,"currency_code":"CAD","in_stock":true},{"title":"u' \/ 2 inch","offer_id":46279352156389,"sku":"BAA-FSLN-2U (Baader #2961703U)","price":370.0,"currency_code":"CAD","in_stock":true},{"title":"u' \/ 36 mm","offer_id":46279352189157,"sku":"BAA-FSLN-RD36U (Baader #2961702U)","price":297.0,"currency_code":"CAD","in_stock":true},{"title":"u' \/ 50.4 mm","offer_id":46279352221925,"sku":"BAA-FSLN-RD50U (Baader #2961704U)","price":443.0,"currency_code":"CAD","in_stock":true},{"title":"u' \/ 50 x 50 mm","offer_id":46279352254693,"sku":"BAA-FSLN-SQ50U (Baader #2961705U)","price":516.0,"currency_code":"CAD","in_stock":true},{"title":"u' \/ 65 x 65 mm","offer_id":46279352287461,"sku":"BAA-FSLN-SQ65U (Baader #2961706U)","price":632.0,"currency_code":"CAD","in_stock":true},{"title":"u' \/ 100 x 100 mm","offer_id":46279352320229,"sku":"BAA-FSLN-SQ100U (Baader #2961707U)","price":1012.0,"currency_code":"CAD","in_stock":true},{"title":"g' \/ 1.25 inch","offer_id":46279352352997,"sku":"BAA-FSLN-1G (Baader #2961700G)","price":216.0,"currency_code":"CAD","in_stock":true},{"title":"g' \/ 2 inch","offer_id":46279352385765,"sku":"BAA-FSLN-2G (Baader #2961703G)","price":362.0,"currency_code":"CAD","in_stock":true},{"title":"g' \/ 36 mm","offer_id":46279352418533,"sku":"BAA-FSLN-RD36G (Baader #2961702G)","price":289.0,"currency_code":"CAD","in_stock":true},{"title":"g' \/ 50.4 mm","offer_id":46279352451301,"sku":"BAA-FSLN-RD50G (Baader #2961704G)","price":434.0,"currency_code":"CAD","in_stock":true},{"title":"g' \/ 50 x 50 mm","offer_id":46279352484069,"sku":"BAA-FSLN-SQ50G (Baader #2961705G)","price":507.0,"currency_code":"CAD","in_stock":true},{"title":"g' \/ 65 x 65 mm","offer_id":46279352516837,"sku":"BAA-FSLN-SQ65G (Baader #2961706G)","price":624.0,"currency_code":"CAD","in_stock":true},{"title":"g' \/ 100 x 100 mm","offer_id":46279352549605,"sku":"BAA-FSLN-SQ100G (Baader #2961707G)","price":1005.0,"currency_code":"CAD","in_stock":true},{"title":"r' \/ 1.25 inch","offer_id":46279352582373,"sku":"BAA-FSLN-1R (Baader #2961700R)","price":217.0,"currency_code":"CAD","in_stock":true},{"title":"r' \/ 2 inch","offer_id":46279352615141,"sku":"BAA-FSLN-2R (Baader #2961703R)","price":363.0,"currency_code":"CAD","in_stock":true},{"title":"r' \/ 36 mm","offer_id":46279352647909,"sku":"BAA-FSLN-RD36R (Baader #2961702R)","price":290.0,"currency_code":"CAD","in_stock":true},{"title":"r' \/ 50.4 mm","offer_id":46279352680677,"sku":"BAA-FSLN-RD50R (Baader #2961704R)","price":436.0,"currency_code":"CAD","in_stock":true},{"title":"r' \/ 50 x 50 mm","offer_id":46279352713445,"sku":"BAA-FSLN-SQ50R (Baader #2961705R)","price":509.0,"currency_code":"CAD","in_stock":true},{"title":"r' \/ 65 x 65 mm","offer_id":46279352746213,"sku":"BAA-FSLN-SQ65R (Baader #2961706R)","price":625.0,"currency_code":"CAD","in_stock":true},{"title":"r' \/ 100 x 100 mm","offer_id":46279352778981,"sku":"BAA-FSLN-SQ100R (Baader #2961707R)","price":1008.0,"currency_code":"CAD","in_stock":true},{"title":"i' \/ 1.25 inch","offer_id":46279352811749,"sku":"BAA-FSLN-1I (Baader #2961700I)","price":212.0,"currency_code":"CAD","in_stock":true},{"title":"i' \/ 2 inch","offer_id":46279352844517,"sku":"BAA-FSLN-2I (Baader #2961703I)","price":357.0,"currency_code":"CAD","in_stock":true},{"title":"i' \/ 36 mm","offer_id":46279352877285,"sku":"BAA-FSLN-RD36I (Baader #2961702I)","price":284.0,"currency_code":"CAD","in_stock":true},{"title":"i' \/ 50.4 mm","offer_id":46279352910053,"sku":"BAA-FSLN-RD50I (Baader 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mm","offer_id":46279353565413,"sku":"BAA-FSLNSET-RD36 (Baader #2961702)","price":1529.0,"currency_code":"CAD","in_stock":true},{"title":"Filterset \/ 50.4 mm","offer_id":46279353598181,"sku":"BAA-FSLNSET-RD50 (Baader #2961704)","price":2403.0,"currency_code":"CAD","in_stock":true},{"title":"Filterset \/ 50 x 50 mm","offer_id":46279353630949,"sku":"BAA-FSLNSET-SQ50 (Baader #2961705)","price":2694.0,"currency_code":"CAD","in_stock":true},{"title":"Filterset \/ 65 x 65 mm","offer_id":46279353663717,"sku":"BAA-FSLNSET-SQ65 (Baader #2961706)","price":3487.0,"currency_code":"CAD","in_stock":true},{"title":"Filterset \/ 100 x 100 mm","offer_id":46279353696485,"sku":"BAA-FSLNSET-SQ100 (Baader #2961707)","price":5751.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/1_e02096bb-a939-4f31-b8d9-0f6bcce46e75.webp?v=1729366721"},{"product_id":"explore-scientific-nebula-filter-uhc-1-25-inch-310215","title":"Explore Scientific Nebula Filter UHC 1.25-inch (310215)","description":"\u003ch1\u003eExplore Scientific Nebula Filter UHC 1.25-inch\u003c\/h1\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eExplore Scientific Nebula Filter 1.25\" UHC Range from 458nm to 508nm with peak at 488nm. Transmission 96.7%\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUHC\u003c\/strong\u003e\u003cspan\u003e - This is an ultra-high contrast narrow-band filter, designed for observing the broad range of nebulae with 1.25-inch standard eyepieces or filter wheels. The bandpass is tighter than the CLS Nebula Filter, thereby blocking even more light from artificial lights and airglow.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIn the Box\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eExplore Scientific Nebula Filter UHC 1.25-inch\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWarranty\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003e\u003ca href=\"https:\/\/istronomyplus.com\/pages\/explore-scientific-warranty\"\u003e\u003cspan class=\"speccell\"\u003eExplore Scientific 1-Year Warranty (You need to register)\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Explore Scientific","offers":[{"title":"Default Title","offer_id":46413017776357,"sku":"ES-310215","price":154.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/1_af25aaae-1d41-42c4-9ddb-20ab260dd9a5.webp?v=1735408209"},{"product_id":"explore-scientific-nebula-filter-cls-1-25-inch-310225","title":"Explore Scientific Nebula Filter CLS 1.25-inch (310225)","description":"\u003ch1\u003eExplore Scientific Nebula Filter CLS 1.25-inch\u003c\/h1\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eExplore Scientific Nebula Filter 1.25\" CLS Range from 436nm to 536nm with peak at 488nm. Transmission 98.3%\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis is a general-purpose light-pollution reduction filter designed for observing the broad range of deep sky objects including nebulae and galaxies. The CLS \u003cspan\u003edoes a good job of increasing contrast, providing a darker sky background.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIn the Box\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eExplore Scientific Nebula Filter CLS 1.25-inch\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWarranty\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003e\u003ca href=\"https:\/\/istronomyplus.com\/pages\/explore-scientific-warranty\"\u003e\u003cspan class=\"speccell\"\u003eExplore Scientific 1-Year Warranty (You need to register)\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Explore Scientific","offers":[{"title":"Default Title","offer_id":46413019152613,"sku":"ES-310225","price":154.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/1_3a919b73-795e-4dc4-9ef1-836fd74481c1.webp?v=1735408663"},{"product_id":"explore-scientific-nebula-filter-uhc-2-0-inch-310210","title":"Explore Scientific Nebula Filter UHC 2.0-inch (310210)","description":"\u003ch1\u003eExplore Scientific Nebula Filter UHC 2.0-inch\u003c\/h1\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eExplore Scientific Nebula Filter 2.0\" UHC Range from 458nm to 508nm with peak at 488nm. Transmission 96.7%\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUHC\u003c\/strong\u003e\u003cspan\u003e - This is an ultra-high contrast narrow-band filter, designed for observing the broad range of nebulae with 2.0-inch standard eyepieces or filter wheels. The bandpass is tighter than the CLS Nebula Filter, thereby blocking even more light from artificial lights and airglow.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIn the Box\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eExplore Scientific Nebula Filter UHC 2.0-inch\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWarranty\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003e\u003ca href=\"https:\/\/istronomyplus.com\/pages\/explore-scientific-warranty\"\u003e\u003cspan class=\"speccell\"\u003eExplore Scientific 1-Year Warranty (You need to register)\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Explore Scientific","offers":[{"title":"Default Title","offer_id":46413135085797,"sku":"ES-310210","price":202.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/1_8d56148d-925b-40ca-a485-ac62ecc823cd.webp?v=1735415493"},{"product_id":"celestron-2-uhc-lpr-filter-used-94124-u","title":"Celestron 2\" UHC\/LPR Filter - USED (94124-U)","description":"\u003ch1\u003eCelestron 2\" UHC\/LPR Filter - USED\u003c\/h1\u003e\n\u003ch2\u003e\u003cspan style=\"color: rgb(242, 13, 13);\"\u003eIn excellent condition\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003eOur 2\" Light Pollution Reduction (LPR) Filters are designed to selectively reduce the transmission of certain wavelengths of light, specifically those produced by artificial light. This includes 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. sky glow).\u003cbr\u003e\u003cbr\u003eThe ultra high contrast (UHC) LPR filter has improved contrast over the typical broadband filters. Sky background is darker, and contrast of emission nebulae are noticeably improved. The advanced technology coatings enable the filter to achieve an outstanding transmission of over 97% across the entire bandpass, with total blockage of prominent light pollution lines. The perfect filter for viewing nebula from light polluted skies, or for boosting the contrast of nebula from dark sky sites.\u003cbr\u003e\u003cbr\u003eIn addition to it's optimum spectral and optical characteristics, the UHC\/LPR filter offers important features that set it apart and result in the highest quality celestial views:\u003cbr\u003e\u003cbr\u003eThe multi-layer dielectric coatings are plasma assisted and Ionbeam hardened using the latest technology for durability and resistance to scratching.\u003cbr\u003e\u003cbr\u003eImproved transmission translates to maximum image brightness and contrast. Users of smaller, 4\"-11\" telescopes will especially appreciate the high efficiency, and larger scope users will love the rich star fields and detailed subtle nebular shadings that are left intact.\u003cbr\u003e\u003cbr\u003eThe high transmission, sharp cutoffs, and more moderate 60nm passband of the UHC\/LPR filter retains a more natural view, yet significantly boosts overall contrast. Imagers will appreciate the broader bandpass and inclusion of an extremely efficient H-Alpha passband (656nm).\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOur 2\" Light Pollution Reduction (LPR) Filters are designed to selectively reduce the transmission of certain wavelengths of light, specifically those produced by artificial light\u003cbr\u003e\n\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\n\u003cli\u003eCelestron 2\" UHC\/LPR Filter - USED\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":48994182955237,"sku":"CEL-94124-BOND","price":110.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/celestron-2-uhclpr-filter-94124-astronomy-plus-1_be332d6f-2d9a-4441-9699-2cb1c8e8bf45.webp?v=1778262288"},{"product_id":"celestron-2-oxygen-iii-narrowband-filter-used-93624-u","title":"SVBONY 2 inch OIII Filter 18nm Reducing Light Pollution - USED (F9186B-U)","description":"\u003ch1\u003eSVBONY SV115 2 inch OIII Filter 18nm Reducing Light Pollution\u003c\/h1\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cul class=\"a-unordered-list a-vertical a-spacing-mini\"\u003e\n\u003cli\u003e\u003cspan class=\"a-list-item\"\u003eThe O-III filter completely blocks virtually all other visible wavelengths of light so views of nebulas are optimized;increases contrast through selective filtration-Anti-reflection coated to prevent glaring and ghosting\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"a-list-item\"\u003eThe filter made from high-grade glass with dichroic interference and antireflection coatings;not only useful at light-polluted sites; the contrast is also increased at dark sky sites;it can be used with all 2\" eyepieces\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"a-list-item\"\u003eNarrowband filter do 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\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"a-list-item\"\u003eThe 2\" O-III filter useful for large aperture telescopes through which the light of the Moon can be extremely overwhelming. 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Narrowband OIII filter is designed for nebula observation allowing 18nm bandwidth of light centered on a wavelength of 500nm through, which corresponds to OIII emission lines, and reducing 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\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eSvbony narrowband OIII filter suitable for visual  observation on most emission nebulae, planetary nebulae and supermova surfaces\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eSuitable for viewing on bright nebulae like M42 Orion Nebula in heavy light pollution\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eUse with a large aperture telescope under clear and dark viewing conditions with good seeing\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eNarrowband filter do not eliminate the effects of light pollution or increase the object's brightness. 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