“Celestron UpClose 20-60×60 Brand New Includes Limited Lifetime Warranty, The Celestron 52229 is a 20-60x 60mm UpClose Spotting Scope that features a prismatic refractor spotting scope, with an externally-sealed, rubber armored waterproof housing. The fully coated optics provides clarity and minimum color aberration . Plus, the permanent zoom eyepiece with a soft rubber eyecup provides more comfort. Celestron refractor spotting scope has a 20-60x magnification, and comes with a convenient metal tabletop tripod with simple pan/tilt movement. 52229 Features: Product # 52229, UpClose Spotting Scope, Refractor Optical Design, Fully-Coated Optics, Waterproof, Zoom Upto 60x, Metal Tabletop Tripod, Zoom Eyepiece, Specifications: Optical Design: Refractor, Aperture: 60mm (2.36 in), Focal Length (mm): 341 mm (13 in), Focal Ratio: 5.68, Magnification 1: 20x – 60x, Highest Useful Magnification: 142x, Lowest Useful Magnification: 8.57x, Limiting Stellar Magnitude: 11.4, Resolution (Rayleigh): 2.32 Arc Seconds, Resolution (Dawes): 1.93 Arc Seconds, Light Gathering Power: 73x, Angular Field of View: 2.5° @ 20x, 1.3° @ 60x, Linear Field of View (@1000 m): 43 @ 20x, 22 @ 60x m (141 ft), Linear Field of View (@1000 yds): 130 @ 20x, 65 @ 60x, Eye Relief (mm): 15 @ 20x, 11 @ 60x mm (0.59 in), Near Focus: 29 ft (8.84 m), Optical Coatings: Fully Coated, Optical Tube Length: 13.6 in (345 mm), Includes: Aluminum Carrying Case, Soft Carrying Case”
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