Featuring waterproof (JIS Class 6) construction and a unibody design, the 8 x 25 UCF WP binocular isn't afraid of a little water. Compact, lightweight, and packed with performance, it provides a 324-foot field of view and 8X magnification.Inverted porro-prism and a dual axis, inner-focus optical design results in a compact and lightweight body. Fully waterproof, JIS Class 6 construction allows these binoculars to be submersed in water up to 1 meter. Focus on nearby subjects with a short minimum focusing distance of 6.2 feet. See objects more clearly with fully multi-coated optical elements that improve light transmission. Better edge-to-edge sharpness with aspherical eyepiece lens. Keep your diopter settings locked with a fully retractable pop-up diopter adjuster. Includes neck straps, carry case, and eyepiece caps. Type: porro-prism, center focusing (linked dual-axis) Objective lens: 3 elements in 2 groups Eyepiece lens: 5 elements in 5 groups Coating: fully multi-coated Magnification: 8X Objective lens diameter: 25 mm Real field of view: 6.2 degrees Apparent field of view: 50 degrees Field of view @ 1000 m: 108 m Field of view @ 1000 yd: 324 ft Exit pupil: 3.1 mm Eye relief: 15 mm Minimum focusing distance: 6.2 ft Relative brightness: 9.6 Diopter adjustment range: + / - 3 m - 1 Eye distance adjustment range: 2.2 - 3.1" Focusing range: 6.2 ft - infinity Eyepiece ring: Helicoid type Waterproof: JIS Class 6 up to 1 m Weight: 12.3 oz.