|Beyond the aesthetics, Leica maintained the performance discerning user demands. The Ultravid delivers enhanced contrast and true color fidelity, with virtually zero distortion, even in low-light conditions by employing phase-correcting coatings onto the prisms and fully multi-coating the optics. Helping to compensate for the visually distracting hand-shake common with using 10x and greater optics, is a wide 64° apparent viewing angle. This allows the use of high magnification binoculars without the need for stabilization equipment like harnesses or tripods. Designed for durability, these Ultravids are uncompromising with their construction details. To reduce user fatigue during long glassing sessions, the chassis is made of a lightweight yet durable magnesium alloy, with a titanium center hinge axle. The optical tubes are nitrogen-filled for fogproof performance and sealed to make the binocular submersible to 16.5 feet. Ergonomic thumb indents on the bottom of the binocular coupled with the leather details provide a comfortable slip-resistant grip. A lubrication-free focus system provides fast and precise focusing, and twist-up click-stop eyecups allow comfortable use with or without eyewear.