These 20x50mm PowerView binoculars feature a massive 20x magnification for long-range viewing, large 50mm objective lenses increase light gathering and viewing comfort. The Porro prisms offer fantastic light transmission for brighter imaging. The Insta-Focus system allows for rapid and accurate focus, and the rugged construction will serve you for years to come.NEW AND IMPROVED VERSION AVAILABLE – CLICK HERE FOR DETAILS!The #1 choice for millions of folks. PowerView. The powerhouse of the binocular industry, and the most trusted optics in the world for a simple reason theyre the optimum combination of performance and value for any pursuit. Features such as their soft-touch grip pads put them a notch above the rest, and everything looks better through bright, clear, fully-coated optics. And we purposely crafted these binos with a lightweight, streamlined design so you never have to go without them. The ultimate go-anywhere, do-anything lineup, PowerView features a wide variety of magnifications, styles and sizes to accommodate everything from an extended backcountry hike to a short run to the concert hall.Multi Coated Optics – Multiple layers of coatings on all lens surfaces increase light transmission and image brightness.Insta-FocusAdjustable diopterPorro PrismsSPECSID BU-132050Name PowerView 20X50 BinocularsMagnification x Objective Lens 20x50Prism System PorroPrism Glass BK-7Field of View (ft @ 100 yds) 170 ftExit Pupil 2.5 mmClose Focus 45 ftWeight 30.0 ozWaterProofing NoLocking Diopter NoAdapts To Tripod YesEyecups Fold-downPermafocus NoPC-3 Phase Coating NoDielectric Prism Coating NoUltra Wide Band Coating NoProtective Lens Coating Multi-CoatedED Prime No