{"product_id":"alpine-astronomical-9nm-o-iii-super-g-cmos-filter-1-25","title":"Alpine Astronomical 9nm O-III Super-G CMOS Filter (1.25\")","description":"\u003cdiv\u003e \n \u003ch2\u003eAlpine Astronomical FOIIISG-1  Overview\u003c\/h2\u003e \n\u003c\/div\u003e \n\u003cdiv\u003e  \n \u003cdiv\u003e \n  \u003cdiv\u003e\u003c\/div\u003e \n \u003c\/div\u003e \n \u003cdiv\u003e \n  \u003cdiv\u003e \n   \u003cp\u003eThis 1.25\" \u003cb\u003e9nm O-III Super-G CMOS Filter\u003c\/b\u003e from \u003cb\u003eAlpine Astronomical\u003c\/b\u003e is designed for observing and photographing planetary nebulae, supernova remnants, and many large emission nebulae. Its 9nm FWHM and CMOS-optimized coatings deliver high visual contrast against the sky background and a 97% transmission rate for the emission line at 500.7nm. The filter can be used photographically from f\/1.8 to f\/12 without passing any light of the H-beta line, making it ideal for areas with high light pollution. The mounted filter features a Reflex-Blocker hard coating, plano-optical polishing, and Life-Coat sealed edges.\u003c\/p\u003e \n  \u003c\/div\u003e \n \u003c\/div\u003e \n \u003cdiv\u003e \n  \u003cdiv\u003e \n   \u003cdiv\u003e \n    \u003cdiv\u003e \n     \u003cdiv\u003e \n      \u003cdiv\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 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 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: hard coatings to enable a non-aging coating for life, even in a most adverse environment\u003c\/li\u003e \n       \u003c\/ul\u003e \n      \u003c\/div\u003e \n     \u003c\/div\u003e \n    \u003c\/div\u003e \n   \u003c\/div\u003e \n  \u003c\/div\u003e \n \u003c\/div\u003e     Items Included  \n \u003cul\u003e \n  \u003cli\u003e\u003cspan\u003eAlpine Astronomical 9nm O-III Super-G CMOS Filter (1.25\")\u003c\/span\u003e\u003c\/li\u003e \n  \u003cli\u003e\u003cspan\u003eLimited 2-Year Manufacturer Warranty\u003c\/span\u003e\u003c\/li\u003e \n \u003c\/ul\u003e    Additional Resources  \n \u003cp\u003eNo additional resources available\u003c\/p\u003e   \n\u003c\/div\u003e \n\u003cdiv\u003e \n \u003cdiv\u003e \n  \u003cdiv\u003e \n   \u003cdiv\u003e \n    \u003cdiv\u003e \n     \u003cdiv\u003e \n      \u003ch2\u003eAlpine Astronomical FOIIISG-1  Specs\u003c\/h2\u003e \n     \u003c\/div\u003e \n     \u003cdiv\u003e \n      \u003ctable\u003e \n       \u003ctbody\u003e \n        \u003ctr\u003e \n         \u003ctd\u003eSize\u003c\/td\u003e \n         \u003ctd\u003e \n          \u003cdiv\u003e \n           \u003cspan\u003e1.25, Mounted\u003c\/span\u003e \n          \u003c\/div\u003e\n\u003c\/td\u003e \n        \u003c\/tr\u003e \n        \u003ctr\u003e \n         \u003ctd\u003eFilter Factor\u003c\/td\u003e \n         \u003ctd\u003e \n          \u003cdiv\u003e \n           \u003cspan\u003eO-III\u003c\/span\u003e \n          \u003c\/div\u003e\n\u003c\/td\u003e \n        \u003c\/tr\u003e \n        \u003ctr\u003e \n         \u003ctd\u003eThickness\u003c\/td\u003e \n         \u003ctd\u003e \n          \u003cdiv\u003e \n           \u003cspan\u003e2 mm, without Cell\u003c\/span\u003e \n          \u003c\/div\u003e\n\u003c\/td\u003e \n        \u003c\/tr\u003e \n        \u003ctr\u003e \n         \u003ctd\u003eCentral Wavelength\u003c\/td\u003e \n         \u003ctd\u003e \n          \u003cdiv\u003e \n           \u003cspan\u003e502 nm\u003c\/span\u003e \n          \u003c\/div\u003e\n\u003c\/td\u003e \n        \u003c\/tr\u003e \n        \u003ctr\u003e \n         \u003ctd\u003eAntireflective Coating\u003c\/td\u003e \n         \u003ctd\u003e \n          \u003cdiv\u003e \n           \u003cspan\u003eReflex-Blocker Hard Coated, Dielectrically Coated, Plano-Optically Polished\u003c\/span\u003e \n          \u003c\/div\u003e\n\u003c\/td\u003e \n        \u003c\/tr\u003e \n       \u003c\/tbody\u003e \n      \u003c\/table\u003e \n     \u003c\/div\u003e \n     \u003cdiv\u003e \n      \u003cdiv\u003e\n        Packaging Info \n      \u003c\/div\u003e \n      \u003ctable\u003e \n       \u003ctbody\u003e \n        \u003ctr\u003e \n         \u003ctd\u003ePackage Weight\u003c\/td\u003e \n         \u003ctd\u003e \n          \u003cdiv\u003e \n           \u003cspan\u003e0.13 lb\u003c\/span\u003e \n          \u003c\/div\u003e\n\u003c\/td\u003e \n        \u003c\/tr\u003e \n        \u003ctr\u003e \n         \u003ctd\u003eBox Dimensions (LxWxH)\u003c\/td\u003e \n         \u003ctd\u003e \n          \u003cdiv\u003e \n           \u003cspan\u003e3.1 x 2.95 x 0.95\"\u003c\/span\u003e \n          \u003c\/div\u003e\n\u003c\/td\u003e \n        \u003c\/tr\u003e \n       \u003c\/tbody\u003e \n      \u003c\/table\u003e \n     \u003c\/div\u003e \n    \u003c\/div\u003e \n   \u003c\/div\u003e \n  \u003c\/div\u003e \n \u003c\/div\u003e \n\u003c\/div\u003e\n\u003cp\u003eAll product and company names are trademarks or registered trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.\u003c\/p\u003e","brand":"Alpine Astronomical-10","offers":[{"title":"Default Title","offer_id":42618010468437,"sku":"ALFOIIISG1:ALFOIIISG1:bhpv","price":18010.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1034\/1611\/files\/1683113717_1764569.jpg?v=1781849016","url":"https:\/\/www.tanotis.com\/products\/alpine-astronomical-9nm-o-iii-super-g-cmos-filter-1-25","provider":"Tanotis","version":"1.0","type":"link"}