William Optics Gran Turismo 81 Triplet APO Refractor in Red - FREE Flat6AIII & 32mm Guide Scope! - A-F81GTIVRD
William Optics Gran Turismo 81 Triplet APO Telescope - White with Red Highlights 81 mm Aperture f/5.9 Imaging Refractor Telescope FPL-53 glass for color free Apochromatic performance Air-spaced Triplet APO Objective Compatible with 0.8 Reducer/Flattener Covers full frame imaging circle, with Flattener 2.5" dual-speed Rack & Pinion Focuser Includes Mounting rings and Vixen style dovetail Dovetail is dual type - flip over to get Arca Swiss plate Weight: 3.74 kg (OTA with rings and dovetail attached) Includes Soft Carry Bag Includes Dust Cover with built-in Bahtinov Mask FREE 32mm Guide Scope & 0.8X Flattener for a limited time! The 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. If 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. Introducing 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. What's In The Box: The WO Gran Turismo 81 Imaging APO Telescope - White with Red Highlights* Two Clamshell-style Telescope Mounting Rings w/ knurled clamp screws Vixen-style (or Arca-Swiss) Dovetail Plate for mounting the scope APO (Apochromatic) design Objective w/ FPL-53 glass 2.5" Dual-speed Rack & Pinion style Focuser Machined Carrying Handle FLAT6AIII Reducer/Flattener 32mm Guide Scope High Quality Soft Carry Bag Specifications: Lens Type: Triplet APO Focal LengthL 478 mm Diameter: 81 mm Focal Ratio: f/5.9 Image Circle: 45 mm Focuser: 2.5" Rack & Pinion, compatible with EAF Focuser Travel: 93 mm Adapter Included: M63 Rotator, 2" - 1.25" Visual Back Flattener Reduction: FLAT6AIII - 0.8X, FLATGT - 1X Camera Format: Full Frame with Flattener, APS-C, M4/3 Dovetail Type: Vixen on one side, Arca-Swiss on the other Tube Length: 390 mm - 460 mm OTA Weight: 3.9 kg/8.6 lbs