{"product_id":"celestron-reducer-lens-7x-edgehd-800","title":"Celestron 0.7x Reducer Lens for EdgeHD 800","description":"\u003ch2\u003eCelestron EdgeHD 0.7x Focal Reducer – 8”\u003c\/h2\u003e\n\u003cp\u003eUnlock the full imaging potential of your Celestron 8” EdgeHD with this dedicated 0.7x focal reducer. Designed with a precision 4-element optical layout, it shortens your focal length for faster exposures and a wider field of view, all while preserving the acclaimed flat-field performance of the EdgeHD system. Perfect for deep-sky astrophotographers, it also ensures generous back focus for a variety of camera and accessory setups.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePrecision 4-Element Optical Design\u003c\/strong\u003e\u003cbr\u003eSpecifically engineered for the 8” EdgeHD OTA, this reducer maintains edge-to-edge sharpness and eliminates field curvature—ideal for APS-C sensors.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWider Field, Faster Imaging\u003c\/strong\u003e\u003cbr\u003eReduces your focal ratio from f\/10 to f\/7, cutting exposure times in half and expanding your field of view by 43%—perfect for capturing larger deep-sky targets like galaxies and nebulae.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAmple 105mm Back Focus\u003c\/strong\u003e\u003cbr\u003eOffers substantial back-focus to accommodate DSLRs, CCD\/CMOS cameras, filter wheels, and off-axis guiders. Compatible with existing Celestron T-adapters and EdgeHD imaging accessories.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eOptical Quality\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eLanthanum Glass Elements\u003c\/strong\u003e\u003cbr\u003eIncorporates exotic, rare-earth Lanthanum optics to enhance contrast and minimise chromatic aberration, even in high-resolution imaging.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFully Multi-Coated Surfaces\u003c\/strong\u003e\u003cbr\u003eAll air-to-glass interfaces are treated with advanced coatings to ensure high light transmission and colour fidelity across the visual spectrum.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eEdge-Blackened Optics\u003c\/strong\u003e\u003cbr\u003eInternal reflections are reduced to a minimum thanks to precision-blackened lens edges, resulting in improved contrast and image clarity.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDesigned for Imaging\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOptimised for APS-C Sensors\u003c\/strong\u003e\u003cbr\u003eProduces an illuminated image circle ideal for most DSLR and dedicated astro cameras, including Celestron Nightscape.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIntermediate Focal Solution\u003c\/strong\u003e\u003cbr\u003eComplements the EdgeHD system’s flexibility by providing a middle ground between native f\/10 and ultra-fast f\/2 imaging with a HyperStar system (sold separately).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eMechanical Excellence\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCNC-Machined Aluminium Housing\u003c\/strong\u003e\u003cbr\u003eDelivers exceptional durability and precise spacing for optical elements, maintaining collimation and performance over time.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eProtective End Caps\u003c\/strong\u003e\u003cbr\u003eIncludes metal-threaded covers to shield both ends of the lens assembly from dust, moisture, and accidental scratches during transport or storage.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDirect Threaded Mounting\u003c\/strong\u003e\u003cbr\u003eAttaches securely to the rear of the 8” EdgeHD via 2” threads for a firm, aligned fit with minimal risk of tilt or flexure.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSummary\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eCustom 4-element design matched to 8” EdgeHD optics\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eReduces focal ratio from f\/10 to f\/7 for shorter exposures\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e105mm back focus supports full imaging setups\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOptimised for APS-C sensors\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePremium Lanthanum glass and multi-coated surfaces\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCNC-machined housing with protective caps\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBridges the gap between native and HyperStar imaging speeds\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eTurn your 8” EdgeHD into a highly adaptable imaging platform with this premium focal reducer—designed to meet the needs of both backyard imagers and serious astrophotographers alike.\u003c\/p\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":55897344115062,"sku":"050234942423","price":449.99,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2235\/3014\/files\/Celestron-Reducer-Lens-7x-EdgeHD-800-Product-Photo-3.webp?v=1757515621","url":"https:\/\/welshastronomy.co.uk\/products\/celestron-reducer-lens-7x-edgehd-800","provider":"The Welsh Astronomy Centre","version":"1.0","type":"link"}