25x 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 - Long eye relief ideal for eyeglass wearers - Carrying case included for travel and safe storage - Limited Lifetime Warranty provides best protection and product support on the market Celestron's SkyMaster Series of large aperture binoculars are a phenomenal value for high performance binoculars ideal for astronomical viewing or for terrestrial (land) use - especially over long distances. Each SkyMaster model features high quality BaK-4 prisms and multi-coated optics for enhanced contrast. Celestron has designed and engineered the larger SkyMaster models to meet the special demands of extended astronomical or terrestrial viewing sessions. The 25x70 version is one of the most popular models in the series. It offers serious large aperture light gathering in an affordable and reasonably lightweight configuration. Magnification: 25x Objective Lens Diameter: 70mm Angular Field of View: 2.7° Linear Field of View (@1000 yds)

@1000 m): 47 m Exit Pupil: 2.8mm Eye Relief: 13mm Close Focus: 23 m Interpupillary Distance (max): 72mm Interpupillary Distance (min): 56mm Diopter Adjustment Range; -4 to +8 Twilight Factor; 41.83 Relative Brightness: 7.84 Lens Coatings: Multi-Coated Prism Glass (Type): BaK-4 Prism Coatings N/A Weight: 1474 g Environmental Protection: Water Resistant Nitrogen Filled: No Tripod Adaptable: Yes Carrying Case: Nylon Dimensions; 220mm x 110mm x 280mm What's in the box Objective lens caps Tripod adapter Rainguard Carrying case Neck strap Lens cloth Instruction manual