{"product_id":"reducer-lens-7x-edgehd-800-94242","title":"Celestron Reducer Lens .7x - EdgeHD 800 - 94242","description":"\n\u003ccenter\u003e\n\u003ch3\u003eAbout the Celestron Reducer Lens .7x - EdgeHD 800...\u003c\/h3\u003e\n\u003c\/center\u003e\n\u003cp\u003eCelestron's EdgeHD reducers features a custom 4 element optical design engineered to maintain the flat-field performance of our award winning EdgeHD optical system. Unlike generic reducers, Celestron Premium Reducers provide substantial back focus to accommodate an assortment of imaging accessories.\u003c\/p\u003e\n\u003cp\u003eCelestron EdgeHD Reducers offer high index optical elements, including extra low dispersion, exotic Lanthanum elements, which provide high contrast viewing while minimizing chromatic aberration. All air to glass lens surfaces feature multiple layers of coating for maximum light transmission and color correction and contain blacken edges to minimize internal reflection and maximize image contrast.\u003c\/p\u003e\n\u003cp\u003eIncorporating computer assisted CNC machined aluminum housing, for precise spacing and alignment of optical elements, and threaded metal covers on the lens assembly to protect your investment from dust and scratches, Celestron Reducers offer you an outstanding mechanical design.\u003c\/p\u003e\n\u003cp\u003eWith the Fastar option on all EdgeHD optical systems, coupled with the .7x reducer, your telescope becomes the most complete imaging system available in its price range today.\u003c\/p\u003e\n\u003cp\u003e\u003ci\u003e\u003cb\u003eDesign:\u003c\/b\u003e\u003c\/i\u003e 5-element optical layout designed specifically for the EdgeHD 8\" to maintain the flat-field performance of the Edge HD optical design\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e\u003ci\u003e105mm of back focus:\u003c\/i\u003e\u003c\/b\u003e Provides generous back focus to accommodate additional accessories and a wide variety of cameras. Also allows use of existing T-adapters for EdgeHD 800 and other Celestron imaging accessories\u003c\/p\u003e\n\u003cp\u003e\u003ci\u003e\u003cb\u003eOne full F-Stop faster than f\/10:\u003c\/b\u003e\u003c\/i\u003e Reduces the exposure time by one-half to capture the same brightness of object\u003c\/p\u003e\n\u003cp\u003e\u003ci\u003e\u003cb\u003eIncrease field of view by 43%:\u003c\/b\u003e\u003c\/i\u003e Better for capturing wide field images of larger galaxies and nebulae\u003c\/p\u003e\n\u003cp\u003e\u003ci\u003e\u003cb\u003eLanthanum Glass Elements:\u003c\/b\u003e\u003c\/i\u003e EdgeHD reducer uses \"rare earth\" Lanthanum glass elements for clear, high contrast viewing while minimizing chromatic aberration\u003c\/p\u003e\n\u003cp\u003e\u003ci\u003e\u003cb\u003eFully multi-coated lens elements:\u003c\/b\u003e\u003c\/i\u003e All air-to-glass surfaces have multiple layers of coating for maximum light transmission and color correction\u003c\/p\u003e\n\u003cp\u003e\u003ci\u003e\u003cb\u003eBlackened edges:\u003c\/b\u003e\u003c\/i\u003e All lens elements have blacken edges to minimize internal reflection and maximize contrast\u003c\/p\u003e\n\u003cp\u003e\u003ci\u003e\u003cb\u003eFull Frame Design:\u003c\/b\u003e\u003c\/i\u003e Optimized for APS-C sized sensors: Including most DSLR cameras and Nightscape CCD cameras\u003c\/p\u003e\n\u003cp\u003e\u003ci\u003e\u003cb\u003eMachined aluminum housing:\u003c\/b\u003e\u003c\/i\u003e Computer assisted CNC machined aluminum housing for precise spacing and alignment of the optical elements.\u003c\/p\u003e\n\u003cp\u003e\u003ci style=\"font-size: 0.875rem;\"\u003e\u003cb\u003eThreaded metal covers for both ends of the lens assembly:\u003c\/b\u003e\u003c\/i\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e To protect your investment from unwanted dust and scratches.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ci\u003e\u003cb\u003eVersatility:\u003c\/b\u003e\u003c\/i\u003e Provides and intermediate focal length between EdgeHD'''s native f\/10 (or f\/11) and the optional Hyperstar accessory at f\/2, making the EdgeHD the most complete imaging system in its price range\u003c\/p\u003e\n\u003ccenter\u003e\n\u003ch3\u003eCelestron Reducer Lens .7x - EdgeHD 800 Features...\u003c\/h3\u003e\n\u003c\/center\u003e\n\u003cul\u003e\n\u003cli\u003eThe EdgeHD .7x Focal Reducer Lens makes your EdgeHD 800 one full f-stop faster than f\/10, doubling the equivalent exposure at f\/10\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e4-element lens design\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003eMaintains similar flat-field performance as native EdgeHD optical design\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003eIncreases field of view by 43% (double by area) to better capture wide field images\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003eOptimized for APS-C sized sensors, including most DSLR cameras and Nightscape CCD cameras\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003eProvides generous 105mm back focus to accomodate additional accessories and a wide variety of cameras\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003eCompatible with EdgeHD 800 T-adapter\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ccenter\u003e\n\u003ch3\u003eCelestron Reducer Lens .7x - EdgeHD 800 Specifications...\u003c\/h3\u003e\n\u003c\/center\u003e\n\u003cp\u003eDesign: 5-Element\u003c\/p\u003e\n\u003cp\u003eCompression Factor: .7 x\u003c\/p\u003e\n\u003cp\u003eOptical Coatings: Fully multi-coated\u003c\/p\u003e\n\u003cp\u003eOptimal Back Focus (mm): 105 mm (4.13 in)\u003c\/p\u003e\n\u003cp\u003eWeight (lbs): 0.8 lbs (0.36 kg)\u003c\/p\u003e\n\u003cp\u003eCelestron Product Number: 94242\u003c\/p\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":10554645441,"sku":"CEL-94242","price":372.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0851\/2766\/files\/94242_reducer_lens_edgehd_800_03.jpg?v=1776458952","url":"https:\/\/khanscope.com\/en-fr\/products\/reducer-lens-7x-edgehd-800-94242","provider":"Khan Scope Centre","version":"1.0","type":"link"}