{"title":"Celestron Field Flatteners, Reducers \u0026 Coma Correctors","description":"\u003cp\u003eCelestron reducers and correctors shorten the focal length of Schmidt-Cassegrain telescopes for a faster focal ratio and a wider field. The dedicated 0.7x reducer lenses for EdgeHD 800, 925, 1100 and 1400 bring each tube to about f\/7 while keeping the flat, coma-free field for imaging.\u003c\/p\u003e\u003cp\u003eThe classic Celestron Reducer-Corrector (f\/6.3) suits standard SCTs, reducing focal length and flattening the field for both visual and imaging use. Choose the model that matches your exact optical tube.\u003c\/p\u003e","products":[{"product_id":"celestron-reducer-corrector","title":"Celestron Reducer - Corrector","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eReduces telescope focal length by 37%\u003c\/li\u003e\n\u003cli\u003eConverts f\/10 SCTs to f\/6.3 and f\/11 systems to f\/7\u003c\/li\u003e\n\u003cli\u003eCompatible with Celestron C5, C6, C8, C9.25, C11, and C14 SCTs\u003c\/li\u003e\n\u003cli\u003eFully multi-coated optics for maximum light transmission\u003c\/li\u003e\n\u003cli\u003eWeighs just 4.3 oz (121.90 g)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eCelestron f\/6.3 Reducer - Corrector\u003c\/h2\u003e\n\u003cp\u003eThe Celestron Reducer - Corrector transforms your Schmidt-Cassegrain telescope, effectively giving you two instruments in one by reducing the focal length by 37% to convert a native f\/10 system into a faster f\/6.3 optical train. This 4-element, fully multi-coated lens threads directly onto the rear cell of C5 to C14 SCTs, weighs only 4.3 oz (121.90 g), and measures 56mm in diameter. For astrophotographers, this focal reduction shortens exposure times by more than half, allowing you to capture faint deep-sky objects with greater efficiency.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eConvert f\/10 to f\/6.3: A 37% Focal Length Reduction\u003c\/h3\u003e\n\u003cp\u003eThis corrector-reducer lens alters the primary optical characteristics of your standard SCT. By reducing the focal length by 37%, it changes an f\/10 telescope to a much faster f\/6.3 system, and an f\/11 telescope to f\/7. This has profound benefits for both visual observation and imaging.\u003c\/p\u003e\n\u003cp\u003eVisually, you achieve a wider true field of view with any given eyepiece, making it easier to locate objects and frame large targets like the Andromeda Galaxy (M31) or the Pleiades (M45). For imaging, the faster focal ratio dramatically cuts down on necessary exposure time, allowing you to gather the same amount of signal in about one-third of the time required at f\/10.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eFor C5 to C14 Standard SCTs: Visual and Photographic Use\u003c\/h3\u003e\n\u003cp\u003eThis reducer is designed specifically for Celestron's standard line of Schmidt-Cassegrain telescopes, offering broad compatibility from the portable C5 up to the observatory-class C14. It threads directly onto the rear cell, creating a secure connection for your imaging train or visual back.\u003c\/p\u003e\n\u003cp\u003eOnce installed, you can attach standard accessories like a T-Adapter for your DSLR or a 1.25\" visual back for diagonals and eyepieces. While it does provide some field-flattening for improved edge-of-field sharpness, its primary function is focal reduction, making it an essential tool for deep-sky astrophotography with non-EdgeHD optical tubes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e4.3 oz Machined Aluminum Body with Fully Multi-Coated Optics\u003c\/h3\u003e\n\u003cp\u003eEngineered for durability and optical clarity, the reducer is housed in a precisely machined aluminum body with a black anodized finish, weighing a mere 4.3 oz. The internal surfaces are blackened and glare-threaded to suppress internal reflections and maximize image contrast, ensuring a dark sky background.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFully Multi-coated Lenses:\u003c\/strong\u003e Every air-to-glass surface features high-transmission coatings to ensure maximum light throughput and minimal reflection, preserving the brightness and fidelity of the image.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKnurled Grip:\u003c\/strong\u003e A textured, knurled surface provides a secure grip for easy threading and unthreading, even when wearing gloves in cold conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Design:\u003c\/strong\u003e At only 34mm (1.34\") in length, it adds minimal backfocus to your optical train, preserving compatibility with most existing accessories.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eStandard SCT vs. EdgeHD: Why This Reducer is Not for EdgeHD Optics\u003c\/h3\u003e\n\u003cp\u003eIt is critical to note that this f\/6.3 reducer is engineered for standard Schmidt-Cassegrain telescopes only and is not compatible with Celestron's EdgeHD optical tubes. EdgeHD telescopes have a built-in flattener and require a dedicated, optically matched reducer (like the Celestron .7x Reducer) to maintain their flat-field, coma-free imaging circle.\u003c\/p\u003e\n\u003cp\u003eUsing this standard reducer on an EdgeHD telescope will result in degraded optical performance and will not achieve the designed image quality of the EdgeHD system. If you own an EdgeHD scope, you must use the reducer specifically designed for that optical system.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Celestron f\/6.3 Reducer change the view in my 8\" f\/10 SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIn a Celestron 8\" SCT with a native 2032mm focal length, this reducer converts it to approximately 1280mm at f\/6.3. With a 25mm eyepiece, your magnification would drop from 81x to 51x, and your field of view would become significantly wider, making it easier to fit large deep-sky objects like the Orion Nebula (M42) into a single frame.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the optimal backfocus for the Celestron Reducer - Corrector?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe optimal backfocus distance from the rear flange of the reducer to the camera sensor is approximately 105mm. Achieving this distance is crucial for obtaining the best possible image quality and the advertised focal reduction. You may need to use spacer rings to precisely match this distance with your specific camera and accessories.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this Reducer - Corrector with an Off-Axis Guider (OAG)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, you can use an OAG with this reducer. However, you must ensure that the total light path of your OAG, camera, and any adapters adds up to the required 105mm of backfocus for optimal performance. This often requires careful selection of components to hit the target spacing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy can't I use this reducer on my Celestron EdgeHD 9.25\" telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eEdgeHD optical systems are designed with an integrated field flattener to provide a perfectly flat field for imaging. They require a specific, matched 0.7x reducer lens that is designed to work with that flattened field. Using this standard f\/6.3 reducer on an EdgeHD will introduce optical aberrations and will not maintain the edge-to-edge sharpness that is the primary feature of the EdgeHD design.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes this reducer completely eliminate field curvature in my standard SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, it does not completely eliminate it. While the Celestron Reducer - Corrector does diminish some of the inherent field curvature of a standard SCT, its primary purpose is focal length reduction. You will notice flatter fields and sharper stars at the edge compared to using the telescope at its native focal length, but it does not produce a perfectly flat field like an EdgeHD system.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this Celestron Reducer - Corrector compatible with non-Celestron SCTs?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis reducer is optically designed and optimized for Celestron Schmidt-Cassegrain telescopes. While it may physically thread onto other brands of SCTs that use the standard 2\" rear cell thread, optical performance is not guaranteed and may vary.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Design\u003c\/td\u003e\n\u003ctd\u003eReducer - Corrector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLens Coatings\u003c\/td\u003e\n\u003ctd\u003eFully Multi-coated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Reduction\u003c\/td\u003e\n\u003ctd\u003e0.63x (37% reduction)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eMachined aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eCelestron C5, C6, C8, C9.25, C11, C14 (Standard SCTs only)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncompatible With\u003c\/td\u003e\n\u003ctd\u003eEdgeHD, Maksutov-Cassegrain, Refractor, Newtonian Telescopes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiameter\u003c\/td\u003e\n\u003ctd\u003e56mm (2.2\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLength\u003c\/td\u003e\n\u003ctd\u003e34mm (1.34\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e4.3 oz (121.90 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cimg class=\"DAV-img-box\" alt=\"Celestron Reducer - Corrector\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/celestron-reducer-corrector-1.jpg?v=1638308400\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eCelestron f\/6.3 Reducer - Corrector\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cimg class=\"DAV-img-box\" alt=\"Front Dust Cap\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/celestron-reducer-corrector-cap-1.jpg?v=1638308401\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eFront Dust Cap\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cimg class=\"DAV-img-box\" alt=\"Rear Dust Cap\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/celestron-reducer-corrector-cap-2.jpg?v=1638308402\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eRear Dust Cap\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/celestron-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eCelestron 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":44967145832733,"sku":"CEL-94175","price":278.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Celestron-Reducer-Corrector-94175-1__19018.1594230247.1280.1280.jpg?v=1684337165"},{"product_id":"celestron-reducer-lens-7x-edgehd-1100","title":"Celestron Reducer Lens .7x - EdgeHD 1100","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eReduces EdgeHD 1100 focal ratio to f\/7.7\u003c\/li\u003e\n\u003cli\u003e5-element optical design with Lanthanum glass\u003c\/li\u003e\n\u003cli\u003eIncreases field of view by 43%\u003c\/li\u003e\n\u003cli\u003eMaintains EdgeHD flat-field imaging performance\u003c\/li\u003e\n\u003cli\u003eProvides a generous 146mm of back focus\u003c\/li\u003e\n\u003cli\u003eOptimized for a 42mm full-frame image circle\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eCelestron Reducer Lens .7x - EdgeHD 1100\u003c\/h2\u003e\n\u003cp\u003eThe Celestron Reducer Lens .7x for the EdgeHD 1100 is a purpose-built, 5-element optical corrector that transforms your telescope into a faster, wider imaging system without compromising its acclaimed flat-field correction. This reducer provides a generous 146mm of back focus for complex imaging trains and increases your field of view by 43%, allowing you to capture expansive nebulae and galaxies within a 42mm full-frame image circle.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eA 5-Element System to Maintain Flat-Field Correction\u003c\/h3\u003e\n\u003cp\u003eUnlike generic reducers that can introduce field curvature, this .7x reducer features a custom 5-element optical design engineered specifically to work with the EdgeHD 1100 system. It uses high-index Lanthanum glass elements to minimize chromatic aberration and preserve the pinpoint stars from the center to the edge of the field. All air-to-glass surfaces are fully multi-coated, and lens edges are blackened to ensure maximum light transmission and image contrast.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e.7x Reduction for f\/7.7 Speed and a 43% Wider View\u003c\/h3\u003e\n\u003cp\u003eBy applying a .7x compression factor, this reducer lens effectively shortens your telescope's focal length, making it one full f-stop faster. This converts the EdgeHD 1100 from f\/10 to a speedier f\/7.7, cutting your required exposure time in half. This speed advantage is paired with a 43% increase in the field of view, enabling you to frame large deep-sky objects like the Andromeda Galaxy (M31) or the Orion Nebula (M42) in their entirety.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e146mm Back Focus for Full-Frame Sensors and Accessories\u003c\/h3\u003e\n\u003cp\u003eDesigned for modern astrophotography, the reducer provides 146mm (5.75\") of optimal back focus, accommodating a wide range of cameras, filter wheels, and off-axis guiders. It threads directly onto the EdgeHD 1100's 3.25\" rear cell, and its 60mm clear aperture ensures the 42mm image circle is fully illuminated without mechanical vignetting. This robust connection and generous spacing make it the ideal solution for imagers using full-frame DSLR, mirrorless, or dedicated astronomy cameras.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the .7x reducer change the EdgeHD 1100's focal length and f-ratio?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Celestron .7x Reducer converts the EdgeHD 1100's native 2800mm focal length at f\/10 to approximately 1960mm at f\/7.7. This makes the system significantly faster, reducing exposure times by 50% for the same image brightness.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the benefit of the 146mm back focus on the EdgeHD 1100 reducer?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003e146mm back focus\u003c\/strong\u003e provides ample space to install a full imaging train behind the reducer. This allows you to comfortably fit accessories like an off-axis guider (OAG), a filter wheel, and your camera without running out of spacing, a common issue with generic reducers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this reducer work with my full-frame camera on the EdgeHD 1100?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The reducer is designed with a large 60mm clear aperture to fully illuminate a 42mm image circle. This is large enough for full-frame sensors (typically 43mm diagonal), ensuring minimal vignetting and sharp stars across the entire frame.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is this dedicated reducer better than a generic SCT reducer for my EdgeHD 1100?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA generic Schmidt-Cassegrain reducer is not designed to preserve the advanced, flat-field optical correction of the EdgeHD system. This dedicated \u003cstrong\u003e5-element reducer\u003c\/strong\u003e is optically matched to the EdgeHD 1100, ensuring it maintains the flat field and pinpoint stars while a generic reducer would likely reintroduce field curvature and other aberrations.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does this reducer help when imaging large targets like the Andromeda Galaxy (M31) with an EdgeHD 1100?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAt its native focal length, an EdgeHD 1100 is too magnified to fit the entire Andromeda Galaxy (M31) in a single frame with most sensors. The reducer's \u003cstrong\u003e43% wider field of view\u003c\/strong\u003e makes it possible to capture the galaxy from core to outer arms, making it an essential accessory for wide-field deep-sky imaging.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes this reducer affect the flat-field correction of the EdgeHD 1100 optics?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, it is designed to maintain it. The primary purpose of this reducer's custom 5-element design is to reduce the focal length while preserving the coma-free, flat-field performance that is the hallmark of the EdgeHD optical system.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Design\u003c\/td\u003e\n\u003ctd\u003e5-Element\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompression Factor\u003c\/td\u003e\n\u003ctd\u003e.7x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptimal Back Focus\u003c\/td\u003e\n\u003ctd\u003e146mm (5.75\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImage Circle\u003c\/td\u003e\n\u003ctd\u003e42mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClear Aperture\u003c\/td\u003e\n\u003ctd\u003e60mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Coatings\u003c\/td\u003e\n\u003ctd\u003eFully Multi-Coated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGlass Type\u003c\/td\u003e\n\u003ctd\u003eLanthanum Elements\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e3.25 lbs (1.47 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e.7x Reducer Lens for EdgeHD 1100\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eThreaded Metal Dust Covers\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 2\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/www.celestron.com\/pages\/drivers-and-software\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e \n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Software\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/celestron-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eCelestron 2-Year Limited Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":44967145865501,"sku":"CEL-94241","price":1180.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Celestron-Reducer-Lens-7x-EdgeHD-1100-94241-1__77053.1594230247.1280.1280.jpg?v=1684337161"},{"product_id":"celestron-reducer-lens-7x-edgehd-1400","title":"Celestron Reducer Lens .7x - EdgeHD 1400","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eReduces EdgeHD 1400 focal ratio by a factor of 0.7x\u003c\/li\u003e\n\u003cli\u003eCustom 5-element optical design preserves flat-field imaging\u003c\/li\u003e\n\u003cli\u003eProvides a generous 146mm of back focus for imaging equipment\u003c\/li\u003e\n\u003cli\u003eDelivers a 42mm image circle, fully illuminating full-frame sensors\u003c\/li\u003e\n\u003cli\u003eFeatures exotic Lanthanum glass elements to eliminate chromatic aberration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eCelestron Reducer Lens .7x - EdgeHD 1400\u003c\/h2\u003e\n\u003cp\u003eThe Celestron Reducer Lens .7x for the EdgeHD 1400 is an optically-matched corrector that transforms the telescope into a faster, wider imaging system without compromising its flat-field correction. Its 5-element design reduces the focal ratio from f\/11 to f\/7.7, increasing the field of view by 43% while cutting required exposure times in half. Engineered with 146mm of back focus and a 42mm image circle, this 3.25 lb reducer fully accommodates large, full-frame CCD and DSLR cameras with accessories like filter wheels and off-axis guiders.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e5-Element Optics: Maintaining Flat-Field EdgeHD Correction\u003c\/h3\u003e\n\u003cp\u003eUnlike a generic reducer, this 5-element lens is designed specifically to work with the EdgeHD 1400's optical system, ensuring the field remains perfectly flat from corner to corner on the sensor. Celestron uses high-index, \"rare earth\" Lanthanum glass elements to provide high-contrast views and minimize chromatic aberration, delivering sharp stars with no color fringing. All air-to-glass surfaces are fully multi-coated for maximum light transmission, while blackened lens edges prevent internal reflections from reducing image contrast.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eImaging at f\/7.7: A 43% Wider Field and Halved Exposure Times\u003c\/h3\u003e\n\u003cp\u003eThe primary purpose of the 0.7x reducer is to make the EdgeHD 1400 a more capable deep-sky imaging instrument. By reducing the focal length, it increases the true field of view by 43%, allowing you to frame large targets like the Andromeda Galaxy (M31) or the North American Nebula (NGC 7000) in their entirety. This reduction also makes the telescope one full f-stop faster, reducing the required imaging exposure time by half to achieve the same signal-to-noise ratio.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e146mm Back Focus: Integrating Full-Frame Cameras and Accessories\u003c\/h3\u003e\n\u003cp\u003eA critical advantage of this reducer is its substantial 146mm (5.75\") of optimal back focus, providing ample space for complex imaging trains. This allows you to easily incorporate accessories like an off-axis guider, filter wheel, or adaptive optics system without struggling to reach focus. The optical design delivers a corrected 42mm image circle, which is large enough to fully illuminate even full-frame sensors without vignetting, making it a professional-grade solution for serious astrophotography.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eMechanical Design: A 60mm Aperture with a 3.25\" Thread-On Interface\u003c\/h3\u003e\n\u003cp\u003eThe reducer's housing is CNC machined from aluminum for precise optical alignment and thermal stability. It threads directly onto the large 3.25\" port on the rear cell of the EdgeHD 1400, creating a rigid, flexure-free connection that prevents mechanical vignetting. With a clear aperture of 60mm, the reducer ensures that the full 42mm corrected image circle reaches the sensor, maximizing the performance of your telescope and camera system. Threaded metal covers are included to protect the optics from dust and scratches when not in use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the main benefit of the EdgeHD 1400 .7x Reducer?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe reducer makes the telescope \"faster\" and \"wider.\" It reduces the focal ratio from f\/11 to a faster f\/7.7, which cuts your exposure times in half. It also increases the field of view by 43%, allowing you to capture larger deep-sky objects that would not fit in the frame at the native focal length.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I set the correct 146mm back focus for my camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 146mm distance is measured from the rear flange of the reducer to your camera's sensor. You will need to use a combination of T-adapters and extension tubes to achieve this precise spacing. You must account for the optical path length of any accessories, such as an off-axis guider or filter wheel, when calculating the required extensions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this reducer with a full-frame camera on my EdgeHD 1400?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, absolutely. This reducer is designed to produce a \u003cstrong\u003e42mm corrected image circle\u003c\/strong\u003e, which is large enough to cover a standard 35mm full-frame sensor (which has a ~43mm diagonal) without significant vignetting or loss of star quality at the corners.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this reducer work on an 11\" or 9.25\" EdgeHD telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. Each EdgeHD reducer is optically matched to a specific telescope aperture to maintain the system's flat-field correction. Using the 14\" reducer on a smaller EdgeHD telescope will result in poor image quality. You must use the reducer designed for your specific model.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the .7x Reducer affect imaging the Orion Nebula (M42) with an EdgeHD 1400?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWith the reducer, you can capture the full expanse of the Orion Nebula, including its faint outer wings and the nearby Running Man Nebula (NGC 1977), in a single frame. At the native f\/11, you would only be able to frame the core Trapezium region, requiring a multi-panel mosaic to capture the entire complex.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the EdgeHD 1400 Reducer compatible with the Fastar system?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The reducer is used on the rear cell of the telescope for f\/7.7 imaging. The Fastar system operates independently by replacing the secondary mirror for ultra-fast f\/2 imaging. Together, they make the EdgeHD 1400 an incredibly versatile imaging platform, offering three distinct focal ratios in one telescope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Coatings\u003c\/td\u003e\n\u003ctd\u003eFully Multi-Coated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLens Elements\u003c\/td\u003e\n\u003ctd\u003e5-Element\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompression Factor\u003c\/td\u003e\n\u003ctd\u003e0.7x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImage Circle\u003c\/td\u003e\n\u003ctd\u003e42mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptimal Back Focus\u003c\/td\u003e\n\u003ctd\u003e146mm (5.75\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClear Aperture\u003c\/td\u003e\n\u003ctd\u003e60mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection to Telescope\u003c\/td\u003e\n\u003ctd\u003e3.25\" Threads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e3.25 lbs (1.47 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eReducer Lens .7x for EdgeHD 1400\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eThreaded Metal Dust Cap (Front)\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eThreaded Metal Dust Cap (Rear)\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Celestron_EdgeHD_Optics_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload EdgeHD Reducer Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Celestron-EdgeHD-Optics-Whitepaper.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload EdgeHD Whitepaper\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/www.celestron.com\/pages\/drivers-and-software\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e \n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Celestron Software\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/celestron-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eCelestron 2-Year Limited Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":44967145931037,"sku":"CEL-94240","price":1180.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Celestron-Reducer-Lens-7x-EdgeHD-1400-94240-1__12070.1594230248.1280.1280.jpg?v=1684337166"},{"product_id":"celestron-reducer-lens-7x-edgehd-800","title":"Celestron Reducer Lens .7x - EdgeHD 800","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eReduces focal length by a factor of 0.7x, changing the EdgeHD 800 from f\/10 to f\/7\u003c\/li\u003e\n\u003cli\u003e4-element optical design maintains the native flat-field performance of the EdgeHD system\u003c\/li\u003e\n\u003cli\u003eIncreases the field of view by 43%, ideal for capturing large celestial objects\u003c\/li\u003e\n\u003cli\u003eProvides a generous 105mm of back focus for compatibility with a wide range of cameras and accessories\u003c\/li\u003e\n\u003cli\u003eFully multi-coated optics with Lanthanum glass elements maximize light transmission and minimize chromatic aberration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eCelestron Reducer Lens .7x - EdgeHD 800\u003c\/h2\u003e\n\u003cp\u003eThe Celestron Reducer Lens .7x for the EdgeHD 800 is a custom-engineered 4-element optical accessory that transforms the telescope's native f\/10 system into a faster f\/7 instrument. This 0.7x compression factor increases the field of view by 43%, allowing you to capture expansive nebulae and galaxies within a single frame. The design provides a substantial 105mm of back focus, accommodating complex imaging trains with filter wheels, off-axis guiders, and a wide variety of dedicated astronomy cameras.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eA 4-Element Design for Flat-Field Imaging\u003c\/h3\u003e\n\u003cp\u003eUnlike a generic reducer, the Celestron .7x Reducer is engineered specifically to work with the EdgeHD 800's optical system. Its 4-element design, which incorporates high-index Lanthanum glass, maintains the flat-field, coma-free performance the EdgeHD is known for, ensuring sharp stars from the center to the edge of the frame. All air-to-glass surfaces are fully multi-coated to maximize light transmission and eliminate chromatic aberration, preserving the high-contrast views of the original optical design.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eA 43% Wider Field and 0.7x Faster Exposures\u003c\/h3\u003e\n\u003cp\u003eBy reducing the focal length, this accessory widens your field of view by 43%, making it possible to frame large targets like the Andromeda Galaxy (M31) or the Orion Nebula (M42) in their entirety. This focal reduction also makes the optical system one full f-stop faster, cutting required exposure times in half. You can gather the same amount of signal in a 5-minute sub-exposure as you would in a 10-minute exposure at f\/10, reducing demands on your mount's tracking and minimizing noise.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCNC Machined Housing and 105mm Back Focus\u003c\/h3\u003e\n\u003cp\u003eThe reducer's housing is CNC machined from aluminum for precise optical alignment and spacing, critical for maintaining image quality. A key feature is the generous 105mm of optimal back focus, measured from the reducer's rear flange. This provides ample room for accessories like off-axis guiders, filter wheels, and adaptive optics systems without compromising the flat-field correction, a significant advantage over reducers with shorter back focus requirements.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe f\/7 Midpoint for the EdgeHD 800\u003c\/h3\u003e\n\u003cp\u003eThe .7x Reducer gives your EdgeHD 800 a versatile f\/7 focal ratio, creating a three-in-one imaging platform. This provides a crucial intermediate step between the telescope's native f\/10 for high-resolution planetary and small galaxy imaging, and the ultra-fast f\/2 ratio available with the optional HyperStar accessory for wide-field surveys. This flexibility makes the EdgeHD 800, equipped with the .7x reducer, one of the most complete imaging systems available.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does the 105mm back focus on the EdgeHD 800 Reducer mean for my imaging setup?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 105mm back focus is the required distance from the reducer's rear mounting flange to your camera's sensor for optimal flat-field performance. This generous distance allows you to easily install accessories like an off-axis guider (OAG), filter wheel, and various adapters in your imaging train while still hitting the correct spacing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the .7x Reducer help when imaging the Andromeda Galaxy (M31) with an EdgeHD 800?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAt its native f\/10 focal length, an EdgeHD 800 is too magnified to capture the full Andromeda Galaxy. The .7x Reducer increases the field of view by 43%, allowing you to frame the entire galaxy and its companions, M32 and M110, in a single shot with an APS-C or smaller sensor. It also reduces exposure time, making it easier to capture the faint outer dust lanes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this reducer work with a full-frame camera on my EdgeHD 800?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile the EdgeHD 800 optical tube has a 42mm illuminated image circle capable of covering a full-frame sensor, using this 0.7x reducer will shrink the optimized image circle to 26.7mm. This is ideal for APS-C sensors (like those in many DSLRs) and smaller dedicated astronomy cameras, but it will cause significant vignetting on a full-frame sensor.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Celestron .7x Reducer better than a generic focal reducer?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. Generic reducers are not designed to correct for the specific field curvature of the EdgeHD optical system. The Celestron .7x Reducer uses a custom 4-element design to maintain the flat, coma-free field across the entire image, ensuring sharp stars to the corners where a generic reducer would show distortion.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow much faster is imaging with the EdgeHD 800 Reducer?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe reducer changes the telescope's focal ratio from f\/10 to f\/7. This is one full f-stop faster, which means it cuts the required exposure time in half. For example, a 10-minute exposure at f\/10 can be achieved in just 5 minutes at f\/7 with the same image brightness.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need any special adapters to connect my DSLR to the .7x Reducer?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. You will need a T-ring for your specific camera brand (e.g., Canon, Nikon) and a T-adapter that provides the correct spacing to achieve the 105mm back focus. Celestron offers T-adapters designed for the EdgeHD series that simplify this process.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Design\u003c\/td\u003e\n\u003ctd\u003e4-element\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompression Factor\u003c\/td\u003e\n\u003ctd\u003e0.7x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLens Elements\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGlass Types\u003c\/td\u003e\n\u003ctd\u003eLanthanum Elements\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Coatings\u003c\/td\u003e\n\u003ctd\u003eFully Multi-Coated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptimal Back Focus\u003c\/td\u003e\n\u003ctd\u003e105mm (4.13\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImage Circle\u003c\/td\u003e\n\u003ctd\u003e26.7mm (with reducer)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.8 lbs (0.36 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eReducer Lens .7x - EdgeHD 800\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eThreaded Metal Dust Cap (Front)\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eThreaded Metal Dust Cap (Rear)\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Celestron_.7x_Reducer_for_EdgeHD_800_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Reducer Lens .7x for EdgeHD 800 Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/celestron-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eCelestron 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":44967145963805,"sku":"CEL-94242","price":582.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Celestron-Reducer-Lens-7x-EdgeHD-800-94242-1__43771.1594230248.1280.1280.jpg?v=1684337171"},{"product_id":"celestron-reducer-lens-7x-edgehd-925","title":"Celestron Reducer Lens .7x - EdgeHD 925","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eReduces focal ratio by a factor of 0.7x for faster imaging\u003c\/li\u003e\n\u003cli\u003e4-element design maintains the native flat-field performance of the EdgeHD 9.25\"\u003c\/li\u003e\n\u003cli\u003eProvides an optimal back focus of 146mm for cameras and accessories\u003c\/li\u003e\n\u003cli\u003eOptimized for a 42mm image circle to illuminate full-frame sensors\u003c\/li\u003e\n\u003cli\u003eFeatures Lanthanum glass elements to minimize chromatic aberration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eCelestron Reducer Lens .7x - EdgeHD 925\u003c\/h2\u003e\n\u003cp\u003eThe Celestron Reducer Lens .7x for the EdgeHD 9.25\" is a custom-engineered 4-element optic that transforms your telescope into a faster, wider imaging system. This reducer provides a generous 146mm of back focus, allowing complex imaging trains while maintaining the award-winning flat-field correction of the EdgeHD optical design from edge to edge.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eA 0.7x Reduction Factor with 4-Element Flat-Field Correction\u003c\/h3\u003e\n\u003cp\u003eThis dedicated reducer converts your f\/10 EdgeHD 9.25\" into an f\/7 system, effectively cutting your required exposure time in half to achieve the same image brightness. The 4-element optical layout is specifically designed to work with the EdgeHD optics, ensuring the pinpoint stars across a flat field are preserved. This means you can capture wide-field images of large galaxies and nebulae with a 43% wider field of view without sacrificing image quality at the edges.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eLanthanum Glass Elements for High-Contrast Imaging\u003c\/h3\u003e\n\u003cp\u003eUnlike generic reducers, the Celestron .7x Reducer uses high-index, exotic Lanthanum glass elements. This \"rare earth\" glass provides superior correction of chromatic aberration, resulting in images with higher contrast and neutral color balance. All air-to-glass surfaces are fully multi-coated for maximum light transmission, and the lens edges are blackened to eliminate internal reflections that can reduce image contrast.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eFull-Frame Ready with 146mm of Optimal Back Focus\u003c\/h3\u003e\n\u003cp\u003eEngineered for modern astrophotography, this reducer features a 60mm clear aperture and produces an optimized 42mm image circle, fully illuminating large full-frame CCD and CMOS sensors without vignetting. It threads directly onto the EdgeHD 9.25\" optical tube's 3.25\" port, creating a rigid connection. The design provides an optimal back focus distance of 146mm, accommodating accessories like off-axis guiders, filter wheels, and a wide range of cameras.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the main benefit of the Celestron .7x Reducer for my EdgeHD 9.25\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary benefit is speed. By converting your telescope from f\/10 to f\/7, it reduces your exposure time by 50%. It also widens your field of view by 43%, allowing you to fit larger celestial objects, like the Andromeda Galaxy (M31), into a single frame.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is a dedicated EdgeHD reducer better than a generic one?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe EdgeHD optical design produces a very flat, coma-free field. A generic reducer is not designed to preserve this correction and will introduce field curvature and other aberrations. The Celestron .7x Reducer is a \u003cstrong\u003e4-element\u003c\/strong\u003e system custom-designed to work with the EdgeHD 9.25\" optics to maintain its signature flat-field performance across the entire image.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Celestron .7x Reducer help when imaging the Orion Nebula (M42) with an EdgeHD 925?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Orion Nebula (M42) is a large and bright target. The \u003cstrong\u003e0.7x\u003c\/strong\u003e reduction allows you to capture the full expanse of the nebula, including its fainter outer structures, in a single shot. The faster f\/7 focal ratio significantly shortens the sub-exposure times needed to capture the faint details without blowing out the bright core of the Trapezium cluster.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does the 146mm back focus on the EdgeHD 925 reducer allow me to do?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003e146mm\u003c\/strong\u003e back focus is the distance required from the reducer's rear flange to your camera sensor for optimal performance. This generous distance provides ample room to install a full imaging train, including an off-axis guider (OAG), a filter wheel, and any necessary adapters, without running out of space.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this reducer work with a full-frame camera on my EdgeHD 9.25\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The reducer is designed with a \u003cstrong\u003e60mm clear aperture\u003c\/strong\u003e and produces a \u003cstrong\u003e42mm image circle\u003c\/strong\u003e. This is large enough to fully illuminate typical full-frame sensors (which have a diagonal of ~43mm) with minimal vignetting, making it an excellent choice for full-frame imaging.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs it difficult to attach the .7x Reducer to the EdgeHD 9.25\" telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, it's straightforward. The reducer threads directly onto the large 3.25\" threaded baffle tube port on the rear cell of the EdgeHD 9.25\". This provides a secure, flexure-free connection that is essential for sharp imaging.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Design\u003c\/td\u003e\n\u003ctd\u003e4-Element\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompression Factor\u003c\/td\u003e\n\u003ctd\u003e0.7x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptimal Back Focus\u003c\/td\u003e\n\u003ctd\u003e146mm (5.75\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImage Circle\u003c\/td\u003e\n\u003ctd\u003e42mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClear Aperture\u003c\/td\u003e\n\u003ctd\u003e60mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGlass Type\u003c\/td\u003e\n\u003ctd\u003eLanthanum Elements\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Coatings\u003c\/td\u003e\n\u003ctd\u003eFully Multi-Coated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHousing\u003c\/td\u003e\n\u003ctd\u003eMachined Aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e2.3 lbs (1.47 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eReducer Lens .7x for EdgeHD 9.25\"\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eThreaded Metal Dust Cap (Front)\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eThreaded Metal Dust Cap (Rear)\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/www.celestron.com\/pages\/drivers-and-software\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Celestron Software\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/celestron-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eCelestron 2-Year Limited Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":44967146029341,"sku":"CEL-94245","price":610.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Celestron-Reducer-Lens-7x-EdgeHD-925-94245-1__58642.1594230249.1280.1280.jpg?v=1684337176"}],"url":"https:\/\/davidastro.com\/en-us\/collections\/celestron-field-flatteners-reducers-and-coma-correctors.oembed","provider":"David Astro","version":"1.0","type":"link"}