{"product_id":"optolong-improved-nb-filters-sho-6-5nm-narrowband-filter-kit","title":"Optolong Improved NB Filters SHO 6.5nm Narrowband Filter Kit","description":"\u003ch2\u003eOptolong NB Filters SHO 6.5nm Narrowband Filter Kit\u003c\/h2\u003e\n\u003cp\u003eOptolong SHO6.5nm filter kit includes SII6.5nm, H-Alpha7nm, and OIII6.5nm narrow-band filters, generally working with astronomical monochrome cooling CCD and modified DSLR  imaging in each single-channel . Corresponding with RGB channel (Ha, OIII, SII), photographers can process Hubble images by astronomical post processing software .\u003c\/p\u003e\n\u003cp\u003eExtra narrowband SIICCD 6.5nm filter (Sulful II for CCD) is designed for nebula observation allowing 12nm bandwidth of light centered on a wavelength of 672nm through, 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 (i.e. skyglow)\u003c\/p\u003e\n\u003cp\u003eH-Alpha 7nm filter is the popular narrowband filter allowing 7nm bandwidth of light centered on a wavelength of 656nm through, 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 (i.e. skyglow). Better choice of narrowband H-alpha astrophotography filter for highest contrast and revealing subtle nebula details.\u003c\/p\u003e\n\u003cp\u003eExtra Narrowband OIII-CCD 6.5nm filter is designed for nebula observation allowing 6.5nm 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 (i.e. skyglow).\u003c\/p\u003e\n\u003cp\u003eOIII emits 495.9nm and 500.7nm and it is a blue-green colored filter. Many of images of planetary nebula and supernova remnants are taken only with H-alpha and OIII filters. They show great structural details, but have natural colors, looking like an RGB image.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eGive you higher contrast and greater detailed viewing;\u003c\/p\u003e\n\u003cp\u003eDecrease background noise and improve the contrast of objects;\u003c\/p\u003e\n\u003cp\u003eIncrease the faint nebula signal and make it to be brightness;\u003c\/p\u003e\n\u003cp\u003eWith narrow band filters kit, you are able to process a hubble image;\u003c\/p\u003e\n\u003cp\u003eThrough the optimization of the substrate and upgrading of coating technology, significantly improved the halo around the stars, especially in O3.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/optolong.com\/uploads\/images\/20191119\/37274b18916a7e7d6fc4f9a0a201f11b.jpg\" width=\"485\" height=\"282\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"http:\/\/optolong.com\/uploads\/images\/20191111\/0ff2d7f395c427aa390ff53daf333cec.jpg\" width=\"609\" height=\"100\"\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\u003eOIII \/ H-A \/ SII Filters\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":43697078304997,"sku":"OL-SHO-1.25","price":665.0,"currency_code":"CAD","in_stock":true},{"title":"2\"","offer_id":43697078337765,"sku":"OL-SHO-2","price":937.0,"currency_code":"CAD","in_stock":true},{"title":"31mm","offer_id":43697078370533,"sku":"OL-SHO-31","price":685.0,"currency_code":"CAD","in_stock":true},{"title":"36mm","offer_id":43697078403301,"sku":"OL-SHO-36","price":768.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/optolong-improved-nb-filters-sho-6-5nm-narrowband-filter-kit-astronomy-plus_ec64c790-0e6e-43af-b2ba-0ce0fdbd3a41.png?v=1690487285","url":"https:\/\/istronomyplus.com\/products\/optolong-improved-nb-filters-sho-6-5nm-narrowband-filter-kit","provider":"Astronomy Plus – Telescopes \u0026 Astrophotography Canada","version":"1.0","type":"link"}