{"product_id":"sky-watcher-evostar-edx-80-apo-doublet-s11135","title":"Sky-Watcher Evostar EDX 80 APO Doublet - S11135","description":"\u003ch3 style=\"text-align: center;\"\u003eSky-Watcher Evostar EDX 80 Limited Edition APO Doublet!\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDoublet apochromatic optical design\u003c\/li\u003e\n\u003cli\u003eTwo-element, air-spaced optical assembly minimizes false color\u003c\/li\u003e\n\u003cli\u003e80mm aperture, 600mm focal length, f\/7.5 focal ratio\u003c\/li\u003e\n\u003cli\u003eFPL 53 glass\u003c\/li\u003e\n\u003cli\u003e2.8-inch dual-speed Crayford-style focuser\u003c\/li\u003e\n\u003cli\u003eThread-on dew shield\u003c\/li\u003e\n\u003cli\u003eAluminum tube coated with glossy, white metal-flake finish\u003c\/li\u003e\n\u003cli\u003eIncluded accessories: Tube rings, 2.8-inch Crayford-style focuser, camera angle adjuster, thread-on dew shield, focuser adapter ring, spacer, 1.25 to 2-inch adapter, and a V-style dovetail\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 class=\"MsoNormal\" style=\"text-align: center;\"\u003eAbout the Sky-Watcher Evostar APO Doublet Series\u003c\/h3\u003e\n\u003cp class=\"MsoNormal\"\u003eSky-Watcher’s Evostar apochromatic doublet refractors are the perfect blend of superior extra-low dispersion glass and affordability. The Evostar refractor lens assembly utilizes a proprietary combination of matched lenses, delivering tack-sharp stars with charcoal-black, contrast-rich skies. All ED glass elements are fluorite-based and feature our proprietary Metallic High-Transmission Coatings™ (MHTC™), virtually eliminating all false color while internal baffle prevent stray light from affecting your photography. Like the optics, the tube is beautifully crafted using aluminum and finished with a white metal-flake finish.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eUsing a doublet refractor instead of a triplet has some advantages: less glass means less weight, less weight means a less expensive telescope, so you can dedicate more money for your mount, camera, or accessories while benefiting from a lightweight astrophotography rig.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eSky-Watcher Evostar EDX refractors provide the finest images obtainable in their design class. These doublet refractors deliver dramatic, coal-black skies and faithful, contrast-rich views of planetary and deep-space phenomenon that are second to none. Sky-Watcher Evostar EDX refractors are the logical choice for the discriminating amateur astronomer looking for an investment in advanced instrumentation for exceptional viewing and astrophotography.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eEvostars come in a foam-lined aluminum case with accessories, including: 2.8-inch Crayford-style focuser, tube rings, camera angle adjuster, thread-on dew shield, focuser adapter ring, spacer, 1.25 to 2-inch adapter, and a V-style dovetail.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eRazor Sharp Optics\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eSky-Watcher Evostar EDX refractors use the finest extra-low dispersion glass available. This results in the best color correction for an ED doublet lens.\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003ctable class=\"spec-table\" style=\"width: 100%; height: 865.710938px;\"\u003e\n\u003cthead\u003e\u003c\/thead\u003e\n\u003cthead\u003e\n\u003ctr style=\"height: 19.59375px;\"\u003e\n\u003cth style=\"width: 58.405749%; height: 19.59375px;\"\u003eOptical Specifications\u003c\/th\u003e\n\u003ctd style=\"width: 38.744987%; height: 19.59375px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 22.945313px;\"\u003e\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 58.405749%; height: 19px;\"\u003eOptical Design (achro or apo)\u003c\/td\u003e\n\u003ctd style=\"width: 38.744987%; height: 19px;\"\u003eApochromatic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 58.405749%; height: 19px;\"\u003eLens Coating (fully multi-coated)?\u003c\/td\u003e\n\u003ctd style=\"width: 38.744987%; height: 19px;\"\u003eFully multi-coated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 58.405749%; height: 19px;\"\u003eLens design (doublet, triplet or Quad)\u003c\/td\u003e\n\u003ctd style=\"width: 38.744987%; height: 19px;\"\u003eED Doublet (Air Spaced)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 58.405749%; height: 19px;\"\u003eED Glass\u003c\/td\u003e\n\u003ctd style=\"width: 38.744987%; height: 19px;\"\u003eFPL-53\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 58.405749%; height: 19px;\"\u003eOptical Quality\u003c\/td\u003e\n\u003ctd style=\"width: 38.744987%; height: 19px;\"\u003eDiffraction limited (1\/4 wave)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 58.405749%; height: 19px;\"\u003eCollimatable Cell\u003c\/td\u003e\n\u003ctd style=\"width: 38.744987%; height: 19px;\"\u003eNo (Self Aligning Cell)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 58.405749%; height: 19px;\"\u003ePrimary Aperture (mm)\u003c\/td\u003e\n\u003ctd style=\"width: 38.744987%; height: 19px;\"\u003e80mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 58.405749%; height: 19px;\"\u003eF\/Ratio\u003c\/td\u003e\n\u003ctd style=\"width: 38.744987%; height: 19px;\"\u003e7.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 58.405749%; height: 19px;\"\u003eFocal Length (mm)\u003c\/td\u003e\n\u003ctd style=\"width: 38.744987%; height: 19px;\"\u003e600mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003cthead\u003e\n\u003ctr style=\"height: 19.59375px;\"\u003e\n\u003cth style=\"width: 58.405749%; height: 19.59375px;\"\u003e\u003cbr\u003e\u003c\/th\u003e\n\u003ctd style=\"width: 38.744987%; height: 19.59375px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 10px;\"\u003e\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\u003c\/tbody\u003e\n\u003cthead\u003e\n\u003ctr style=\"height: 19.59375px;\"\u003e\n\u003cth style=\"width: 58.405749%; height: 19.59375px;\"\u003eOptional Corrector\/Reducer Specifications\u003c\/th\u003e\n\u003ctd style=\"width: 38.744987%; height: 19.59375px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 20.695313px;\"\u003e\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 38px;\"\u003e\n\u003ctd style=\"width: 58.405749%; height: 38px;\"\u003eCorrector Name\u003c\/td\u003e\n\u003ctd style=\"width: 38.744987%; height: 38px;\"\u003eEvostar 80ED 0.85x reducer\/flattener\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 58.405749%; height: 19px;\"\u003eOptional Corrector\/Reducer SKU\u003c\/td\u003e\n\u003ctd style=\"width: 38.744987%; height: 19px;\"\u003eS20200\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 58.405749%; height: 19px;\"\u003eReduction (reducer only)\u003c\/td\u003e\n\u003ctd style=\"width: 38.744987%; height: 19px;\"\u003e0.85x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 58.405749%; height: 19px;\"\u003eCorrector - insertable or thread-on\u003c\/td\u003e\n\u003ctd style=\"width: 38.744987%; height: 19px;\"\u003eThread on\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 58.405749%; height: 19px;\"\u003eCorrector Thread size\u003c\/td\u003e\n\u003ctd style=\"width: 38.744987%; height: 19px;\"\u003eM56x1 female\/48mm male\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 58.405749%; height: 19px;\"\u003eCorrector Back Focus\u003c\/td\u003e\n\u003ctd style=\"width: 38.744987%; height: 19px;\"\u003e55mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 58.405749%; height: 19px;\"\u003eCorrector illuminated field\u003c\/td\u003e\n\u003ctd style=\"width: 38.744987%; height: 19px;\"\u003e43mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 58.405749%; height: 19px;\"\u003eF\/Ratio with reducer installed\u003c\/td\u003e\n\u003ctd style=\"width: 38.744987%; height: 19px;\"\u003e6.375\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 58.405749%; height: 19px;\"\u003eFocal Length with reducer installed\u003c\/td\u003e\n\u003ctd style=\"width: 38.744987%; height: 19px;\"\u003e510mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 58.405749%; height: 19px;\"\u003eCorrector adapter needed?\u003c\/td\u003e\n\u003ctd style=\"width: 38.744987%; height: 19px;\"\u003eIncluded with telescope\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 58.405749%; height: 19px;\"\u003eCorrector allow for 2\" filters?\u003c\/td\u003e\n\u003ctd style=\"width: 38.744987%; height: 19px;\"\u003eNo* (Adapter needed)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003cthead\u003e\n\u003ctr style=\"height: 19.59375px;\"\u003e\n\u003cth style=\"width: 58.405749%; height: 19.59375px;\"\u003eMechanical Specifications\u003c\/th\u003e\n\u003ctd style=\"width: 38.744987%; height: 19.59375px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 20.695313px;\"\u003e\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 58.405749%; height: 19px;\"\u003eFocuser Type\u003c\/td\u003e\n\u003ctd style=\"width: 38.744987%; height: 19px;\"\u003eCrayford\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 58.405749%; height: 19px;\"\u003eFocuser Size\u003c\/td\u003e\n\u003ctd style=\"width: 38.744987%; height: 19px;\"\u003e2.8\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 58.405749%; height: 19px;\"\u003eFocuser: Dual or Single Speed\u003c\/td\u003e\n\u003ctd style=\"width: 38.744987%; height: 19px;\"\u003eDual speed (11:1 ratio)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 58.405749%; height: 19px;\"\u003eFocuser: Rotatable?\u003c\/td\u003e\n\u003ctd style=\"width: 38.744987%; height: 19px;\"\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 58.405749%; height: 19px;\"\u003eCamera Angle Adjuster?\u003c\/td\u003e\n\u003ctd style=\"width: 38.744987%; height: 19px;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 58.405749%; height: 19px;\"\u003eCompression Ring\u003c\/td\u003e\n\u003ctd style=\"width: 38.744987%; height: 19px;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 58.405749%; height: 19px;\"\u003eRetractable dew shield?\u003c\/td\u003e\n\u003ctd style=\"width: 38.744987%; height: 19px;\"\u003eNo* (Removeable (thread-on)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 58.405749%; height: 19px;\"\u003eOTA material\u003c\/td\u003e\n\u003ctd style=\"width: 38.744987%; height: 19px;\"\u003eAluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 58.405749%; height: 19px;\"\u003eOptical Tube length Retracted\/Extended (inches)\u003c\/td\u003e\n\u003ctd style=\"width: 38.744987%; height: 19px;\"\u003e22\" \/ 18.7\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 58.405749%; height: 19px;\"\u003eDew Shield diameter (mm)\u003c\/td\u003e\n\u003ctd style=\"width: 38.744987%; height: 19px;\"\u003e4.84\" (123mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 38px;\"\u003e\n\u003ctd style=\"width: 58.405749%; height: 38px;\"\u003eOptical Tube weight with included accessories (pounds)\u003c\/td\u003e\n\u003ctd style=\"width: 38.744987%; height: 38px;\"\u003e7.3 pounds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 58.405749%; height: 19px;\"\u003eMounting Rings?\u003c\/td\u003e\n\u003ctd style=\"width: 38.744987%; height: 19px;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 58.405749%; height: 19px;\"\u003eDovetail type\u003c\/td\u003e\n\u003ctd style=\"width: 38.744987%; height: 19px;\"\u003eV-style\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 58.405749%; height: 19px;\"\u003eDovetail length\u003c\/td\u003e\n\u003ctd style=\"width: 38.744987%; height: 19px;\"\u003e8\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 58.405749%; height: 19px;\"\u003eMounting ring threads (upper holes)\u003c\/td\u003e\n\u003ctd style=\"width: 38.744987%; height: 19px;\"\u003e1\/4-20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003cthead\u003e\n\u003ctr style=\"height: 10px;\"\u003e\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003c\/table\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e","brand":"Sky-Watcher USA","offers":[{"title":"Default Title","offer_id":43130013188209,"sku":"SKY-S11135","price":1040.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0851\/2766\/files\/S11155_Evostar80EDX_Tableau.webp?v=1775852307","url":"https:\/\/khanscope.com\/fr\/products\/sky-watcher-evostar-edx-80-apo-doublet-s11135","provider":"Khan Scope Centre","version":"1.0","type":"link"}