Celestron Skymaster 15×70 Stargazing Binoculars

Skymaster 15×70 Stargazing Binoculars with Tripod Mount Celestron’s SkyMaster large aperture binoculars are phenomenal value for such high performance binoculars. Designed mainly for astronomical viewing but also perfect for terrestrial (land) use, especially over long distances. This model features high quality BaK-4 prisms and multi-coated optics for enhanced contrast. Celestron has designed and engineered the larger SkyMaster binoculars to meet the special demands of extended astronomical or terrestrial viewing sessions. The included tripod mount makes long viewing sessions much more comfortable. Features: 15x magnification Porro Prism binocular Large 70 mm objective lens offers maximum image brightness in low-light and long-range conditions Ultra sharp focus across the field of view Multi-Coated optics for sharp, clear views Suitable for terrestrial or astronomical viewing Protective rubber covering for ultra-firm grip Large center focus knob for easy focusing Tripod adapter included (tripod not included) Long eye relief ideal for eyeglass wearers Carrying case included for travel and safe storage Limited Lifetime Warranty Specifications: Magnification:  15x Objective Lens Diameter:  70mm (2.75″) Focal Length of Objective Lens:  279.63mm (11″) Angular Field of View:  4.4° Linear Field of View (@1000 yds) / @1000 m):  231 ft (77 m) Exit Pupil:  4.7mm (.18″) Eye Relief:  18mm (.71″) Close Focus:  43 ft (13 m) Interpupillary Distance (max):  72mm (2.83″) Interpupillary Distance (min):  56mm (2.20″) Diopter Adjustment Range:  -4 to +8 Twilight Factor:  32.4 Relative Brightness:  22.09 Limiting Stellar Magnitude:  Ideal: 11.73 | Moderate: 10.73 | Poor: 9.73 Lens Coatings:  Multi-Coated Prism Glass (Type):  BaK-4 Environmental Protection: Water Resistant Tripod Adaptable:  Yes Dimensions:  220mm x 110mm x 280mm (8.7″ x 4.3″ x 11.0″) Weight:  1361g Includes:  SkyMaster Binoculars Tripod Adapter (tripod not included) Objective Lens Caps Rainguard Neck Strap Lens Cloth Carrying Case Instruction Manual (71009)