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"Celestron Omni XLT 102 Refractor, The Celestron 21088 features the stable platform of the CG-4 mount and high quality optics
It uses aspheric shaping technology in conjunction with hand-figuring the optics the Omni XLT presents an image with virtually no spherical aberration.The famous StarBright XLT coatings provides maximized light transmission along with ball bearings in both axis of the mount for smooth performance. The Omni XLT 102 has CG-4 German Equatorial mount with setting circles and slow motion controls - to accurately locate and track sky objects. The Heavy-duty pre-assembled stainless steel tripod features 1.75"" legs, accessory tray and bubble level. Omni XLT 102 21088 Features: 4.02 Inch Aperture (102mm), StarBright XLT Coating, 241x Maximum Magnification, Focal Length: 1000mm, f/9.8 Focal Ratio, 60x30 Finderscope, Aluminum Tripod, Omni CG-4 Equatorial Mount, Quick & Easy No-Tool Setup, Ball Bearings in Both Axis of Mount, Specifications: Optical Design: Refractor, Aperture (mm): 102 mm (4.02 in), Focal Length (mm): 1000 mm (39 in), Focal Ratio: 9.8, Eyepiece 1 (mm): 25 mm (0.98 in), Magnification 1: 40x, Finderscope: 6x30, Mount: Omni CG-4 Equatorial, Tripod: 1.75"" Stainless, Highest Useful Magnification: 241x, Lowest Useful Magnification: 15x, Limiting Stellar Magnitude: 12.5, Resolution (Rayleigh): 1.37 Arc Seconds, Resolution (Dawes): 1.14 Arc Seconds, Light Gathering Power: 212x, Apparent Field of View (deg): 1.25, Optical Coatings: StarBright XLT, Linear Field of View (@1000 yds): 66 ft (20 m), Optical Tube Length: 39.5 in (1003 mm), Tripod Weight: 12.5 lbs (5.67 kg), Optical Tube Weight: 9.5 lbs (4.31 kg), Celestron 21088 Includes: 25mm (40x) 1.25"" Eyepiece, 6x30mm LER Finderscope, Star Diagonal - 1.25"", Dovetail Mounting Plate, 7 lbs (3.2kg) Counterweight, 4 lbs (1.8kg) Counterweight, Sky CD-ROM Software for Windows"
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