Celestron SkyMaster 25x100 Porro Prism Binoculars

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. For maximum stability and secure optical alignment the 100mm SkyMaster model features enhanced structural reinforcement to the main binocular body. As an additional convenience, the 100mm SkyMaster model also includes an integral super rigid photo tripod adapter. The SkyMaster Series binoculars are built to provide years of magnificent views of the world around you and the heavens above. GENERAL Magnification: 25x Objective Lens Diameter: 100mm (3.94”) Focal Length of Objective Lens: 417.32mm (16.43”) Angular Field of View: 3° Linear Field of View (1000 yds) / 1000 m): 156 ft (52 m) Exit Pupil: 4mm (.15”) Eye Relief: 15mm (.59”) Close Focus: 80 ft (24.4 m) Interpupillary Distance (max): 72mm (2.83”) Interpupillary Distance (min): 56mm (2.20”) Diopter Adjustment Range: ±5 Twilight Factor: 50 Relative Brightness: 16 Limiting Stellar Magnitude: Ideal: 12.50 | Moderate: 11.50 | Poor: 10.50 Lens Coatings: Multi-Coated Prism Glass (Type): BaK-4 Prism Coatings: N/A Weight: 140 oz (3969 g) Environmental Protection: Water Resistant Nitrogen Filled: No Tripod Adaptable: Yes Carrying Case: Nylon Dimensions: 256mm x 130mm x 388mm (10.1” x5.1” x 15.28”) Included Items: Objective lens capsRainguardCarrying caseNeck strapLens clothInstruction manual Solar Warning Never look directly at the Sun with the naked eye or with this optic. Permanent and irreversible eye damage may result. Never use your optic to project an image of the Sun onto any surface. Internal heat build-up can damage the optic and any accessories attached to it. Never leave your optic unsupervised. Make sure an adult who is familiar with the correct operating procedures is with your optic at all times, especially when children are present.