Built with the same materials and to the same precise specifications as the larger models, Leica's 10x32 Ultravid HD-Plus Binocular delivers bright and clear high-contrast images across the entire field of view with true color rendition and virtually zero distortion. The smaller objectives reduces the overall size and weight for better portability and less muscle strain during long-duration viewing session, while still delivering competent low-light performance. Helping to compensate for the distracting hand-shake common with using 10x and greater optics, is a wide 67' apparent viewing angle. This allows the use of high magnification binoculars without the need for stabilization equipment such as harnesses. Leica employs specially formulated SCHOTT HT glass which increases light transmission especially in the blue-violet light band, improves color fidelity, and enhances low-light performance. Scratch and abrasion-resistant High Durable Coating (HDC), and hydrophobic AquaDura coating on outer lens protect surfaces and causes water and oil to bead off for easier cleaning and clearer vision. The roof prisms feature P40 phase-correction and the proprietary High Lux System (HLS) coatings. These coatings virtually eliminate chromatic aberration for enhanced color rendition and increased contrast. Complementing the optical performance are uncompromising construction details. To reduce user fatigue during long glassing sessions, the chassis is made of a lightweight yet durable magnesium alloy, with a high-tensile titanium center hinge axle. The optical tubes are nitrogen-filled for fogproof performance and sealed to make the binocular submersible to 16 feet. Ergonomic thumb indents on the bottom of the binocular coupled with protective rubber armoring provide a comfortable slip-resistant grip. A lubrication-free focus system provides fast and precise focusing, with PETP-Discs to provide smooth movement throughout the broad operating temperature range.