The BX-5 Santiam HD 10x42mm Binoculars adds high-definition performance to the already fantastic BX-5 Santiam line-up! Specially coated extra-low dispersion lenses offer razor-sharp resolution and amazing color to easily identify game in heavy cover from astonishing distances. Extra-low dispersion HD lenses and the Twilight Max Light Management System combine to give you a crisp image, vibrant color, and optimal contrast in harsh or poor light. With BAK-4 prisms ramping up light transmission, they also redefine low-light performance, clarity, and resolution at extreme long range. Specifications and Features: Leupold BX-5 Santiam HD Binoculars 174483 10x Magnification 42mm Objective BAK-4 Prism Exit Pupil 4.2mm Eye Relief High 16.6mm Close Focus Distance 10ft Length 5.9" Linear FOV 341.0ft/1000 yd Central Focus Dial Diopter Focus Ergonomic Design Fully Multi coated Lens System Lead Free Phase Coated Proprietary Nitrogen Fill Process Tripod Ready Twist-up Eyecups Long Eye Relief Xtended Twilight Lens System Binocular Tray Tripod Adapter Go Afield Shoulder Strap Go Afield Binocular Case Lens Covers Lens Cloth 100% Waterproof and Fog Proof Armor coated and rugged Interpupillary Distance (mm) Low 58.0 Interpupillary Distance (mm) High 74.0 Weight 23.4oz Shadow Gray Finish