{"product_id":"optolong-ir-pass685-planetary-filter-2-mounted-opt-ir685-2","title":"Optolong IR Pass685 Planetary Filter 2\" Mounted (OPT-IR685-2)","description":"\u003cp\u003eOptolong IR Pass 685nm filter is designed to block wavelengths below 670nm and can be used in IR-LRGB imaging to produce a sharper luminance image for the best planetary contrast as atmospheric seeing and distortion is much reduced at longer IR wavelengths.\u003c\/p\u003e\n\u003cp\u003eThe sensor of CCD or CMOS cameras is capable of detecting light in the 350-1100nm range including infrared wavelengths. Thus RGB planetary images taken with IR as the luminance channel have visible-enhanced contrast and surface detail than standard LRGB images.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ch4\u003eSpectrum and Characteristic\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eSubstrate: B270\u003c\/li\u003e\n\u003cli\u003eThickness: 1.85mm\u003c\/li\u003e\n\u003cli\u003eTave: T\u0026gt;90%\u003c\/li\u003e\n\u003cli\u003eBlocking range: 350-1050nm\u003c\/li\u003e\n\u003cli\u003eBlocking depth: light pollution line blocking \u0026gt;99%\u003c\/li\u003e\n\u003cli\u003eSurface quality: 60\/40\u003c\/li\u003e\n\u003cli\u003eTransmitted Wavefront RMS: λ\/4\u003c\/li\u003e\n\u003cli\u003eParallelism: 30s\u003c\/li\u003e\n\u003c\/ul\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\u003ch4\u003eWarm Prompt\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eAbout colour: due to the influence of ambient light, colour difference of the display and flash photography, the colour of the product may have some colour difference. Detailed colour is in accordance with the final product.\u003c\/li\u003e\n\u003cli\u003eAbout coating: the interference filter will show different colours under different light, which is a normal phenomenon. Please refer to the material object.\u003c\/li\u003e\n\u003cli\u003eAbout the style: in order to improve the product, the change of design\/appearance\/parameters has not been updated in time. Please see the subject produce.\u003c\/li\u003e\n\u003cli\u003eAbout the description: the series of this product have the same material, technology and design, different sizes only, please note.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOuter Box: sliver box\u003c\/li\u003e\n\u003cli\u003ePlastic Box: PP material\u003c\/li\u003e\n\u003cli\u003eLining: imported high pressure white EVA material\u003c\/li\u003e\n\u003cli\u003eIR Pass685 Planetary Filter\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Optolong","offers":[{"title":"Default Title","offer_id":47238860669180,"sku":"AS100192","price":160.95,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/7702\/9116\/files\/8f8d4c0c1a277df1d44295224a63dec1.jpg?v=1749241916","url":"https:\/\/all-startelescope.com\/products\/optolong-ir-pass685-planetary-filter-2-mounted-opt-ir685-2","provider":"All-Star Telescope Canada","version":"1.0","type":"link"}