{"product_id":"celestron-reducer-lens-7x-edgehd-925-94245","title":"Celestron Reducer Lens .7x - EdgeHD 925 (94245)","description":"\u003ch2\u003eCelestron Reducer Lens .7x - EdgeHD 925\u003c\/h2\u003e\n\u003cp\u003eCelestron’s new EdgeHD 925 Reducer Lens .7x  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\n\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 60 mm clear aperture, ensure that the optimized image circle remains at a generous 42 mm for use with large CCD sensors.\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, our 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\u003ch4\u003e\u003c\/h4\u003e\n\u003ch4\u003ePerformance\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\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\n\u003cli\u003e\n\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\n\u003cli\u003e\n\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\n\u003cli\u003e\n\u003cstrong\u003eIncrease field of view by 43%: \u003c\/strong\u003eBetter for capturing wide field images of larger galaxies and nebulae\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eGlass\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\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\n\u003cli\u003e\n\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\n\u003cli\u003e\n\u003cstrong\u003eBlacken edges:\u003c\/strong\u003e All lens elements have blacken edges to minimize internal reflection and maximize contrast\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFull Frame Design\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\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\n\u003cli\u003e\n\u003cstrong\u003eClear aperture: \u003c\/strong\u003e60 mm clear aperture lens optimized for a 42 mm image circle for use with large CCD sensors.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eMechanical Design\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMachined aluminum housing: \u003c\/strong\u003eComputer assisted CNC machined aluminum housing for precise spacing and alignment of the optical elements.\u003c\/li\u003e\n\u003cli\u003e\n\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\n\u003c\/ul\u003e\n\u003ch4\u003eVersatility\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\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 \u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eAdditional Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe EdgeHD .7x Focal Reducer Lens makes your EdgeHD 9.25\" one full F-Stop faster than f\/10, reducing your exposure time by half to capture the same brightness of object\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli\u003e4-element lens design\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli\u003eMaintains similar flat-field performance as native EdgeHD optical design\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli\u003eIncreases field of view by 43% to better capture wide field images\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli\u003eThreads directly onto the 3.25\" threads of the EdgeHD which reduces mechanical vignetting and allows for use with larger (full frame) sensors and Off-Axis Guiders\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli\u003eMaintains the identical back focus when used at f\/10 and provides generous back focus to accommodate additional accessories and wide variety of cameras\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli\u003eAllows use of existing EdgeHD T-Adapters with or without the Reducer Lens\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable style=\"box-sizing: inherit; border-collapse: collapse; border-spacing: 0px; text-align: left; width: 1200px; color: #333e48; font-family: 'Open Sans', Arial, Helvetica, sans-serif; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\" id=\"product-specs-list\" class=\"table-open\"\u003e\n\u003ctbody style=\"box-sizing: inherit;\" id=\"spec-block-1\"\u003e\n\u003ctr style=\"box-sizing: inherit; border-bottom: 1px solid #e4e8ea;\"\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px; width: 300px; font-weight: bold;\"\u003eOptical Coatings:\u003c\/td\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px;\"\u003eFully Multi-Coated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; border-bottom: 1px solid #e4e8ea;\"\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px; width: 300px; font-weight: bold;\"\u003eWeight:\u003c\/td\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px;\"\u003e2.3 lbs (1.47 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; border-bottom: 1px solid #e4e8ea;\"\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px; width: 300px; font-weight: bold;\"\u003eCompression Factor:\u003c\/td\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px;\"\u003e.7x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; border-bottom: 1px solid #e4e8ea;\"\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px; width: 300px; font-weight: bold;\"\u003eLens Elements:\u003c\/td\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px;\"\u003e4-Element\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; border-bottom: 0px;\"\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px; width: 300px; font-weight: bold;\"\u003eOptimal Back Focus:\u003c\/td\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px;\"\u003e146mm (5.75\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\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\"\u003eCelestron Reducer Lens .7x - EdgeHD 925\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003e2-Year Warranty\u003c\/p\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":43125754659045,"sku":"CEL-94245","price":610.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/celestron-reducer-lens-7x-edgehd-925-94245-astronomy-plus.webp?v=1690484656","url":"https:\/\/istronomyplus.com\/products\/celestron-reducer-lens-7x-edgehd-925-94245","provider":"Astronomy Plus – Telescopes \u0026 Astrophotography Canada","version":"1.0","type":"link"}