{"product_id":"baader-65nm-f2-highspeed-filters-cmos-optimized-h-alpha-o-iii-s-ii","title":"Baader 6.5nm f\/2 Highspeed Filters – CMOS-optimized (H-alpha \/ O-III \/ S-II)","description":"\u003cul data-mce-fragment=\"1\"\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eBaader H-alpha \/ O-III \/ S-II f \/ 2 Highspeed Filter Set - Precision Grade\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e6.5 nm FWHM, recommended for extremely fast optical systems from f \/ 3.4 to f \/ 1.8\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSpecially designed for the special filter requirements when used with fast optics like the Starizona HyperStar and Celestron RASA astrographs\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eReflex-Blocker ™ hard coated and planoptically polished - with sealed coating edges ( \u003c\/span\u003e\u003cspan\u003eLife-Coat ™\u003c\/span\u003e\u003cspan\u003e )\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBlackened edges all around, with filter-lead-side-indicator in the form of a black frontside outer rim\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOptimized for modern CMOS cameras, but excellent for CCD camera technologies\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe new generation of Baader CMOS-optimized filters features:\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eCMOS-Optimized Baader Filter\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eIncreased contrast\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eEver more narrow passbands\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eReflex-Blocker™ coatings, for largest ever freedom from halos, even under most adverse conditions concerning aux-optics\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eFWHM on each filter category carefully designed to allow for 1:1:1 exposures, matched for typical CMOS quantum efficiency and s\/n ratio\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eIdentical filter thickness to existing standards, with utmost care for parfocality\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\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 data-mce-fragment=\"1\"\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 data-mce-fragment=\"1\"\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","brand":"Baader 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