Magellan outdoor binocular for the extreme enthusiast No matter where you go or what the weather, the Magellan 10x25 WP I binoculars are up to the task. A compact size and weight of just over 12 ounces means you can comfortably take them anywhere, while their waterproof and nitrogen-filled design and high-index BaK-4 prisms and fully multi-coated lenses mean they?ll deliver the sights clearly and crisply no matter what the forecast. Features: Waterproof up to one meter in water Nitrogen-filled for fogproof performance High-index BaK-4 roof prisms for edge-to-edge clarity Fully multi-coated lens for maximum brightness and contrast Twist-up eyecups, long-eye relief and dioptric correction for comfortable viewing UV ray protection Large center focusing knob Waterproof neoprene case and floatable neck strap included Specifications: Type: Roof Magnification: 10x Objective Lens Diameter: 25mm Exit Pupil Diameter: 2.5mm Real Angle of View: 5.0 Apparent Angle of View: 50 degrees Field of View AT 1000 yds: 87m Relative brightness: 6.3 Eye relief: 16mm Diopter adjustment range: Over +/- 2 m-1 Eye Interval Adjustment Range: 58 - 72mm Near Focus Distance: 3m Weight: 12.2 oz. Dimensions: 115mm x 111mm x 43.5 Lens Composition: 8 elements in 6 groups