{"product_id":"chroma-loglow-light-pollution-filter","title":"Chroma LoGlow Light Pollution Filter","description":"\u003ch2\u003eChroma LoGlow Light Pollution Filter\u003c\/h2\u003e\n\u003cp\u003eThe Chroma LoGlow Light Pollution Filter blocks common spectral lines from lighting sources. This filter provides balanced color for the visible spectrum while blocking most emission from metal-halide and vapor lamp sources which together contribute to sky glow.\u003c\/p\u003e\n\u003cp\u003eChroma Technology is an employee-owned company. They specialize in the design and manufacture of sputtered optical filters and coatings for applications that require the greatest precision in color separation, optical quality and signal purity. Their astronomical filters are used worldwide in research and amateur applications. They are as comfortable designing and manufacturing custom filters as they are for their catalog items.\u003c\/p\u003e\n\u003cp\u003eHighly precise and accurate, the passbands of these filters remain spectrally stable and do not drift in response to extreme temperature fluctuations or changes in humidity. All filters may be used with apertures of f\/4 or smaller. Chroma provides custom coating services for more demanding imaging applications requiring larger apertures such as f\/3 or f\/2. They also can provide larger sizes and unique passbands upon request.\u003c\/p\u003e\n\u003cp\u003eChroma manufactures the highest quality astronomy filters with durable, sputtered hard coatings using single substrates of the best glass, eliminating the need for laminations. All primary filter coatings are applied on the front surface and anti-reflection coatings on the rear surface to prevent ghosting and to maximize transmission.\u003c\/p\u003e\n\u003cp\u003eAll filters are manufactured in Vermont.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAdditional Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBlocks common spectral lines from lighting sources. This filter provides balanced color for the visible spectrum while blocking most emission from metal-halide and vapor lamp sources which together contribute to sky glow.\u003c\/li\u003e\n\u003cli\u003eExtremely durable coatings withstand humidity changes and extreme temperature fluxes and remain spectrally accurate\u003cbr\u003ein CWL and band pass adherence\u003c\/li\u003e\n\u003cli\u003eNo reflections leading to image distortions or “back reflections”\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eT: ≥ 94% avg. across visible passbands\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eBlocking ≥ OD1.4@ metal-halide and vapor lamp lines\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eDurable sputter coatings\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eParallelism: \u0026lt;30 arcsec\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThickness: 3.0 +\/-0.05mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eFilters designed for use with CCD and for f\/4.0 or slower\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eTransmitted wavefront better than 0.25 waves\/inch\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eIn the Box\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan\u003eChroma LoGlow Filter of the chosen size\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\n\u003cp\u003eChroma Astronomy Filters \u0026amp; Sets Brochure\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eLifetime Warranty for Sputtered Catalog Filters\u003c\/p\u003e","brand":"Chroma","offers":[{"title":"1.25″ round mounted","offer_id":57203769147558,"sku":"mvo1787936588798","price":205.89,"currency_code":"USD","in_stock":true},{"title":"2″ round mounted","offer_id":57203769180326,"sku":"whm1787936588799","price":332.1,"currency_code":"USD","in_stock":true},{"title":"31mm round unmounted","offer_id":57203769213094,"sku":"xfc1787936588800","price":178.07,"currency_code":"USD","in_stock":true},{"title":"36mm round unmounted","offer_id":57203769245862,"sku":"ljd1787936588801","price":244.24,"currency_code":"USD","in_stock":true},{"title":"50mm round unmounted","offer_id":57203769278630,"sku":"chx1787936588802","price":326.84,"currency_code":"USD","in_stock":true},{"title":"50mm x 50mm square unmounted","offer_id":57203769311398,"sku":"mwl1787936588803","price":406.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0690\/2215\/4918\/files\/chroma-loglow-light-pollution-filter_1.png?v=1787936594","url":"https:\/\/www.marbleandmoss.shop\/products\/chroma-loglow-light-pollution-filter","provider":"My Store","version":"1.0","type":"link"}