{"product_id":"reducer-lens-7x-edgehd-925","title":"Reducer Lens .7x - EdgeHD 925","description":"\u003cp\u003eCelestron’s EdgeHD reducers feature a custom 4-element optical design engineered to maintain the flat-field performance of our award-winning EdgeHD optical system. Unlike generic reducers, our premium reducers provide substantial back-focus to accommodate an assortment of imaging accessories.\u003c\/p\u003e \u003cp\u003eEdgeHD 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. Large diameter lens elements, up to 60mm clear aperture, ensure that the optimized image circle remains at a generous 42mm for use with large CCD sensors.\u003c\/p\u003e \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, our reducers offer you an outstanding mechanical design.\u003c\/p\u003e \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 \u003ch3\u003ePerformance\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eDesign:\u003c\/strong\u003e 4-element optical layout designed specifically for the EdgeHD 9.25\" to maintain the flat-field performance of the EdgeHD optical design\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eMaintains the same back-focus as when used at f\/10:\u003c\/strong\u003e Unlike generic reducers the EdgeHD .7x provides generous back-focus to accommodate additional accessories and a wide variety of cameras. Also allows use of existing EdgeHD T-Adapters and other Celestron imaging accessories\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eOne full F-Stop faster than f\/10:\u003c\/strong\u003e Reduces the exposure time by one-half to capture the same brightness of object\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003e Increase field of view by 43%: \u003c\/strong\u003eBetter for capturing wide-field images of larger galaxies and nebulae\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eGlass\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eLanthanum Glass Elements: \u003c\/strong\u003eEdgeHD reducer uses \"rare earth\" Lanthanum glass elements for clear, high contrast viewing while minimizing chromatic aberration\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eFully multi-coated lens elements:\u003c\/strong\u003e All air-to-glass surfaces have multiple layers of coating for maximum light transmission and color correction\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eBlacken edges:\u003c\/strong\u003e All lens elements have blacken edges to minimize internal reflection and maximize contrast\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eFull Frame Design\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eThreads directly onto the 3.25\" threads of the EdgeHD optical tube: \u003c\/strong\u003eReduces mechanical vignetting and allows for use with larger (full frame) sensors and Off-Axis Guiders\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eClear aperture: \u003c\/strong\u003e60mm clear aperture lens optimized for a 42mm image circle for use with large CCD sensors.\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eMechanical Design\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eMachined aluminum housing: \u003c\/strong\u003eComputer assisted CNC machined aluminum housing for precise spacing and alignment of the optical elements.\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eThreaded metal covers for both ends of the lens assembly: \u003c\/strong\u003eTo protect your investment from unwanted dust and scratches.\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eVersatility\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eFastar compatibility and f\/2 imaging with optional accessory: \u003c\/strong\u003ethe EdgeHD is the most complete imaging system in its price range.\u003cstrong\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/strong\u003e \u003c\/li\u003e \u003c\/ul\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":44926735515727,"sku":"94245","price":439.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0675\/2406\/7407\/files\/94245_Reducer_Lens_EdgeHD_9.25_1_d67fe260-82bd-4117-9da2-231488df5781.jpg?v=1776998908","url":"https:\/\/hobbytechsupply.com\/products\/reducer-lens-7x-edgehd-925","provider":"Hobby Tech Supply","version":"1.0","type":"link"}