{"product_id":"william-optics-gran-turismo-81-triplet-apo-refractor-in-red-free-flat6aiii-32mm-guide-scope-a-f81gtivrd","title":"William Optics Gran Turismo 81 Triplet APO Refractor in Red - FREE Flat6AIII \u0026 32mm Guide Scope! - A-F81GTIVRD","description":"\u003ch3 style=\"text-align: center;\"\u003eWilliam Optics Gran Turismo 81 Triplet\u003cbr\u003eAPO Telescope - White with Red Highlights\u003c\/h3\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0851\/2766\/files\/GT81IV_Imaging_Package_Red.webp?v=1786994814\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e81 mm Aperture f\/5.9 Imaging Refractor Telescope\u003c\/li\u003e\n\u003cli\u003eFPL-53 glass for color free Apochromatic performance\u003c\/li\u003e\n\u003cli\u003eAir-spaced Triplet APO Objective\u003c\/li\u003e\n\u003cli\u003eCompatible with 0.8 Reducer\/Flattener\u003c\/li\u003e\n\u003cli\u003eCovers full frame imaging circle, with Flattener\u003c\/li\u003e\n\u003cli\u003e2.5\" dual-speed Rack \u0026amp; Pinion Focuser\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eIncludes Mounting rings and Vixen style dovetail\u003c\/li\u003e\n\u003cli\u003eDovetail is dual type - flip over to get Arca Swiss plate\u003c\/li\u003e\n\u003cli\u003eWeight: 3.74 kg (OTA with rings and dovetail attached)\u003c\/li\u003e\n\u003cli\u003eIncludes Soft Carry Bag\u003c\/li\u003e\n\u003cli\u003eIncludes Dust Cover with built-in Bahtinov Mask\u003c\/li\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\u003cstrong\u003eFREE 32mm Guide Scope \u0026amp; 0.8X Flattener for a limited time!\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe William Optics Gran Turismo 81 Imaging APO Telescope is a high quality Apochromatic Imaging optical telescope with an aperture of 81 mm and a focal length of 478 mm or an f-ratio of f\/5.9, without the Reducer\/Flattener.\u003c\/p\u003e\n\u003cp\u003eIf you wish to take great astro-images with a high quality APO refractor, this William Optics Gran Turismo 81 Imaging APO telescope is a good way to obtain your goal. Its FPL-53 glass APO design provides images with extreme sharpness, clear details, great color, with APO grade color correction. Add the included FLAT6AIII Reducer\/Flattener to shorten the focal length. Then the image circle will be full frame compatible, and perfect for imaging deep sky objects.\u003c\/p\u003e\n\u003cp\u003eIntroducing a first innovative feature in the industry: Now this Gran Turismo 81 Imaging APO Telescope from William Optics comes standard with a dust cover that has a built-in, clear Bahtinov Mask for perfect focusing every time. Simply remove the flat front cover plate, leaving the dust cover cuff in place on the scope. Point the telescope at a bright star, and focus carefully. When the bright central diffraction spike looks exactly centered between the other two spikes forming an \"X\", then your telescope is in exact focus for stars. Remove the dust cover cuff carefully from the objective end of the telescope, and you are ready to image.\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eWhat's In The Box:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThe WO Gran Turismo 81 Imaging APO Telescope - White with Red Highlights*\u003c\/li\u003e\n\u003cli\u003eTwo Clamshell-style Telescope Mounting Rings w\/ knurled clamp screws\u003c\/li\u003e\n\u003cli\u003eVixen-style (or Arca-Swiss) Dovetail Plate for mounting the scope\u003c\/li\u003e\n\u003cli\u003eAPO (Apochromatic) design Objective w\/ FPL-53 glass\u003c\/li\u003e\n\u003cli\u003e2.5\" Dual-speed Rack \u0026amp; Pinion style Focuser\u003c\/li\u003e\n\u003cli\u003eMachined Carrying Handle\u003c\/li\u003e\n\u003cli\u003eFLAT6AIII Reducer\/Flattener\u003c\/li\u003e\n\u003cli\u003e32mm Guide Scope\u003c\/li\u003e\n\u003cli\u003eHigh Quality Soft Carry Bag\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"text-align: center;\"\u003eSpecifications:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLens Type: Triplet APO\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eFocal LengthL 478 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eDiameter: 81 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eFocal Ratio: f\/5.9\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eImage Circle: 45 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eFocuser: 2.5\" Rack \u0026amp; Pinion, compatible with EAF\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eFocuser Travel: 93 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eAdapter Included: M63 Rotator, 2\" - 1.25\" Visual Back\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eFlattener Reduction: FLAT6AIII - 0.8X, FLATGT - 1X\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eCamera Format: Full Frame with Flattener, APS-C, M4\/3\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eDovetail Type: Vixen on one side, Arca-Swiss on the other\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eTube Length: 390 mm - 460 mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003cul\u003e\n\u003cli\u003eOTA Weight: 3.9 kg\/8.6 lbs\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":44044183273585,"sku":"WIL-A-F81GTIVRD","price":2481.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0851\/2766\/files\/GT-81-IV-Red_Right.webp?v=1786994814","url":"https:\/\/khanscope.com\/fr\/products\/william-optics-gran-turismo-81-triplet-apo-refractor-in-red-free-flat6aiii-32mm-guide-scope-a-f81gtivrd","provider":"Khan Scope Centre","version":"1.0","type":"link"}