Leica Ultravid 10x32mm HD-Plus 40091|40091 offers bright and crisp high-contrast images and a commendable low-light performance. The images are the same throughout the field of view with high color fidelity and virtually zero distortion. Important features of the Leica 10x32 Ultravid HD-Plus Binocular include SCHOTT HT Glass which enhances light transmission; compact phase-corrected roof prisms with proprietary High Lux System (HLS) coatings for eliminating chromatic aberration; High Durable Coating (HDC) for scratch and abrasion resistance; AquaDura lens coatings for easier cleaning and clearer vision; 67? wide angle viewing to facilitate the use of high magnification binoculars without the need for stabilization; center focusing, closed bridge configuration, lightweight yet durable magnesium alloy chassis with high tensile titanium center hinge axle; protective rubber armor; twist-up click-stop eyecups; nitrogen-filled for fogproofing; and sealed for waterproofing (submersible to 16 feet).