New 20x50 Zoom HD Monocular Outdoor Telescope for Bird Watching Spotting Scope Lightweight Body High Clear Vision Landscape Details Product name:20X50 Spotting Scope Type:20X50 Magnification:20X Object lens diameter:50mm Lens cone diameter:61mm Prism:BK7 Prism type:Roof Eyepiece diameter:14mm Coating:blue film Exit pupil diameter:2.5mm Exit pupil distance:9mm Field:3 Application:civil How to maintain your spotting scope: 1.Do not attempt to disassemble or clean the scope internally.This will invalidate the warranty. 2.The external optical surface should occasionally be wiped clean with the lens cloth provided ,a soft lint less cloth,or an optical quality lens paper.Wipe the scope with a damp cloth,following with a dry cloth. 3.Store the unit in a moisture-free environment. 4.Keep the protective lens covers in place when the scope is not in use. Package content 1. 1 X Bird-watching telescope 2. 1 X Adjustable tripod 3. 1 X Special Lens cleaning cloth 4. 1 X Chinese manual