{"product_id":"celestron-narrowband-h-alpha-h-beta-o-iii-imaging-filter-for-8-rasa-ota","title":"Celestron Narrowband H-alpha \/ H-beta \/ O III Imaging Filter for 8\" RASA OTA","description":"\u003cdiv\u003e\n \u003ch2\u003eCelestron 93619 Overview\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n \u003cdiv\u003e\n  \u003cdiv\u003e\u003c\/div\u003e\n  \u003cdiv\u003e\n   \u003cul\u003e\n    \u003cli\u003e\n\u003cspan\u003e1\u003c\/span\u003e\u003cspan\u003e\u003cspan\u003eDescription\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan\u003e2\u003c\/span\u003e\u003cspan\u003e\u003cspan\u003ePurpose Built\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan\u003e3\u003c\/span\u003e\u003cspan\u003e\u003cspan\u003eSelective Filtration\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan\u003e4\u003c\/span\u003e\u003cspan\u003e\u003cspan\u003eDesign and Construction Details\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n   \u003c\/ul\u003e\n  \u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv\u003e\n  \u003cdiv\u003e\n   \u003cdiv\u003e\n    \u003cp\u003eDesigned specifically for their 8\" Rowe-Ackerman Schmidt Astrograph (RASA) telescope, \u003cb\u003eCelestron\u003c\/b\u003e's \u003cb\u003eNarrowband H-alpha \/ H-beta \/ O III Imaging Filter\u003c\/b\u003e blocks all but three wavelengths of light to improve your shots of wispy nebulae like the NGC 7000 North America, M8 Lagoon, M42 Orion, and the NGC 3372 Carina.\u003c\/p\u003e\n   \u003c\/div\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      \u003ch2\u003ePurpose Built\u003c\/h2\u003e\n     \u003c\/div\u003e\n     \u003cdiv\u003e\n      \u003cdiv\u003e\n       \u003cul\u003e\n        \u003cli\u003eEngineered specifically to work with RASA's fast f\/2 optics\u003c\/li\u003e\n        \u003cli\u003eFits into the 8\" RASA's integrated filter mount\u003c\/li\u003e\n        \u003cli\u003eTo install, remove the OTA's clear window and replace it with the filter�optical performance for the entire system is maintained\u003c\/li\u003e\n        \u003cli\u003eNo adapter is needed for installation\u003c\/li\u003e\n       \u003c\/ul\u003e\n      \u003c\/div\u003e\n     \u003c\/div\u003e\n    \u003c\/div\u003e\n   \u003c\/div\u003e\n   \u003cdiv\u003e\n    \u003cdiv\u003e\n     \u003cdiv\u003e\n      \u003ch2\u003eSelective Filtration\u003c\/h2\u003e\n     \u003c\/div\u003e\n     \u003cdiv\u003e\n      \u003cdiv\u003e\n       \u003cul\u003e\n        \u003cli\u003e85% or higher transmission at 486nm, 496nm\/501nm, and 656nm wavelengths, less than 0.5% of all other wavelengths\u003c\/li\u003e\n        \u003cli\u003eTransmits only the Hydrogen-alpha, Hydrogen-beta, and Oxygen-III wavelengths from emission nebulae to enhance contrast\u003c\/li\u003e\n        \u003cli\u003eWill not dim the nebulae, it only makes the background blacker\u003c\/li\u003e\n        \u003cli\u003eSelectively blocks wavelengths of light-polluted skies and natural sky glow\u003c\/li\u003e\n        \u003cli\u003eEliminates the effect of light pollution while letting the \"good\" wavelengths of light associated with emission nebulae pass through to the camera\u003c\/li\u003e\n        \u003cli\u003eEach filter comes with its own spectral transmission graph that verifies its performance\u003c\/li\u003e\n        \u003cli\u003eNot recommended for use on broadband emission objects such as galaxies and star clusters.\u003c\/li\u003e\n       \u003c\/ul\u003e\n      \u003c\/div\u003e\n     \u003c\/div\u003e\n    \u003c\/div\u003e\n   \u003c\/div\u003e\n   \u003cdiv\u003e\n    \u003cdiv\u003e\n     \u003cdiv\u003e\n      \u003ch2\u003eDesign and Construction Details\u003c\/h2\u003e\n     \u003c\/div\u003e\n     \u003cdiv\u003e\n      \u003cdiv\u003e\n       \u003cul\u003e\n        \u003cli\u003eMade of 2mm thick Schott B270 glass with optically flat surfaces free of defects\u003c\/li\u003e\n        \u003cli\u003eDichroic multi-bandpass and multilayer anti-reflection coatings\u003c\/li\u003e\n        \u003cli\u003e46mm (1.81\") filter diameter with 43mm (1.69\") clear aperture\u003c\/li\u003e\n        \u003cli\u003eBlack anodized aluminum cell with knurled rim for easy grip during installation\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  \u003cdiv\u003e\n   \u003cimg\u003e\n   \u003cdiv\u003e\n    UPC: 050234936194\n   \u003c\/div\u003e\n  \u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv\u003e\n  \u003cdiv\u003e\n   \u003ch4\u003eIn the Box\u003c\/h4\u003e\n   \u003cul\u003e\n    \u003cli\u003e\u003cspan\u003eCelestron Narrowband H-alpha \/ H-beta \/ O III Imaging Filter for 8\" RASA OTA\u003c\/span\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003cspan\u003ePlastic Case\u003c\/span\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003cspan\u003eLimited 2-Year Warranty\u003c\/span\u003e\u003c\/li\u003e\n   \u003c\/ul\u003e\n  \u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv\u003e\u003c\/div\u003e\n \u003cul\u003e\u003c\/ul\u003e\n \u003cdiv\u003e\n  \u003cdiv\u003e\u003c\/div\u003e\n  \u003cdiv\u003e\n   \u003cdiv\u003e\n    \u003cdiv\u003e\n     Table of Contents\n    \u003c\/div\u003e\n    \u003cul\u003e\n     \u003cli\u003eDescription\u003c\/li\u003e\n     \u003cli\u003ePurpose Built\u003c\/li\u003e\n     \u003cli\u003eSelective Filtration\u003c\/li\u003e\n     \u003cli\u003eDesign and Construction Details\u003c\/li\u003e\n    \u003c\/ul\u003e\n   \u003c\/div\u003e\n  \u003c\/div\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     \u003ch2\u003eCelestron 93619 Specs\u003c\/h2\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\u003cspan\u003e0.16 lb\u003c\/span\u003e\u003c\/td\u003e\n       \u003c\/tr\u003e\n       \u003ctr\u003e\n        \u003ctd\u003eBox Dimensions (LxWxH)\u003c\/td\u003e\n        \u003ctd\u003e\u003cspan\u003e3.9 x 3.7 x 1.3\"\u003c\/span\u003e\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\u003cdiv\u003e\n \u003ch2\u003eCelestron 93619 Reviews\u003c\/h2\u003e\n\u003c\/div\u003e\u003cbr\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.","brand":"Celestron-10","offers":[{"title":"Default Title","offer_id":40040856846421,"sku":"CEHHOIIIR8:CEHHOIIIR8:bhpv","price":55690.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1034\/1611\/products\/1623856847_1644970.jpg?v=1650566523","url":"https:\/\/www.tanotis.com\/products\/celestron-narrowband-h-alpha-h-beta-o-iii-imaging-filter-for-8-rasa-ota","provider":"Tanotis","version":"1.0","type":"link"}