Nikon 7483 Prostaff 8X25 Waterproof All Terrain Binocular

Product Descriptionmulticoated, Aspherical Eyepiece Lenses And Bak4 Prisms Deliver Bright, High-Resolution Images Under All Lighting Conditions.Generous Eye Relief For A Clear And Comfortable View, Especially For Eyeglass Wearers. Includes Turn-And-Slide Rubber Eyecups.Fully Waterproof/Fogproof Nitrogen-Filled And O-Ring Sealed.Smooth Central Focus Knob Fast Range Of Focus For Quick Viewing.Durable And Protective, Rubber-Armored Coating Provides A Sure, Non-Slip Grip, Wet Or Dry.Specifications Focusing System: Central Focus Magnification: 8X Objective Diameter: 25 Mm Angular Fov (Real): 6.3 Degrees Angular Fov (Apparent): 47.5 Degrees Fov At 1000 Yds: 330 Ft Close Focus Distance: 9.2 Ft Exit Pupil: 3.1 Mm Relative Brightness: 9.6 Eye Relief: 15.5 Mm Size (Length X Width): 3.9X4.5 In Weight: 12.5 Oz Interpupilary Distance: 56-72 Mm Waterproof, Fogproof Porro Prismfrom The Manufacturerkey Features: 100 Percent Waterproof/Fogproof Compact And Lightweight Aspherical Eyepiece Lenses Provide Crisp, Distortion-Free Field Of View Long Eye-Relief For Eyeglass Wearers Rubber Armored, Polycarbonate Body Eco-Glass Lenses And Prisms For High Performance And Weight-Savings Twist-Up Eyecups For Easy Viewing