CELESTRON REDUCER LENS .7X FOR 8" EDGE HD
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Images are illustrative. The product shown may differ from the one offered or include components not part of the product set.
VendorCelestron
Product code94242
Price€500.70
Price (excl. VAT)€403.79
Availability5+ pcs
Ships out in5-8 bd
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Celestron's new 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, our premium reducers provide substantial back focus to accommodate an assortment of imaging accessories.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.Incorporating 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.With 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.PerformanceDesign: 4-element optical layout designed specifically for the EdgeHD 8" to maintain the flat-field performance of the Edge HD optical design105mm of back focus: 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 accessoriesOne full F-Stop faster than f/10: Reduces the exposure time by one-half to capture the same brightness of objectIncrease field of view by 43%: Better for capturing wide field images of larger galaxies and nebulaeGlassLanthanum Glass Elements: EdgeHD reducer uses "rare earth" Lanthanum glass elements for clear, high contrast viewing while minimizing chromatic aberrationFully multi-coated lens elements: All air-to-glass surfaces have multiple layers of coating for maximum light transmission and color correctionBlacken edges: All lens elements have blackened edges to minimize internal reflection and maximize contrastLarge Illuminated FieldOptimized for APS-C sized sensors: Including most DSLR cameras and Nightscape CCD camerasMechanical DesignMachined aluminum housing: Computer assisted CNC machined aluminum housing for precise spacing and alignment of the optical elements.Threaded metal covers for both ends of the lens assembly: To protect your investment from unwanted dust and scratchesVersatilityProvides 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 rangeFeaturesThe EdgeHD .7x Focal Reducer Lens makes your EdgeHD 800 one full f-stop faster than f/10, doubling the equivalent exposure at f/104-element lens designMaintains similar flat-field performance as native EdgeHD optical designIncreases field of view by 43% (double by area) to better capture wide field imagesOptimized for APS-C sized sensors, including most DSLR cameras and Nightscape CCD camerasProvides generous 105mm back focus to accomodate additional accessories and a wide variety of camerasCompatible with EdgeHD 800 T-adapterPlease Note: The optimum photographic back focus of the EdgeHD 8" is 105 mm when used with #94242 Reducer Lens at f/7.Our #93648 Off-Axis Guider, when used with the reducer #94242 and a DSLR, reaches appx 120mm.Therefore because the 105mm distance is so critical, the Off-Axis Guider is not typically compatible for use with the EdgeHD 8" and Reducer lens combination.The EdgeHD 11" and 14" all keep the same 146mm back focus with or without the reducer so are not affected.