The Vortex Viper HD 10x50 Roof Prism Binoculars offer premium optics and rugged construction in a compact, lightweight package. These binoculars are an optical masterpiece, providing hunters, shooters, and outdoor enthusiasts with a premium option without the premium price tag. The HD optical system delivers stunning resolution, color fidelity, and edge-to-edge clarity. Lenses with XR PLUS Fully Multi-Coating enhance light transmission for better performance in low light conditions, offering more game-spotting opportunities. The Viper HD binoculars feature HD (High Density) extra-low dispersion glass for crystal clear high-definition images. Vortex's proprietary XR Fully Multi-Coating is applied to all air-to-glass surfaces to vastly improve and increase light transmission. Multi-Layer Dielectric Prism Coatings provide bright, clear, color-accurate images, while phase correction coating enhances the roof prism's resolution and contrast. The binoculars are waterproof with O-ring seals to prevent moisture, dust, and debris from penetrating, ensuring consistent, reliable performance in all environments. Fogproof argon gas purging prevents internal fogging across a wide range of temperatures. The exterior lenses are protected by ArmorTek, an ultra-hard, scratch-resistant coating that shields them from scratches, oil, and dirt. The rubber-armored exterior provides a secure, non-slip grip and durable external protection. A lightweight, short-hinge design offers improved ergonomics and handling for extended use. These binoculars are among the lightest and most compact full-size binoculars available. Convenience features include adjustable eyecups for a customized, comfortable viewing experience, with or without eyeglasses. A center focus wheel allows for simultaneous adjustment of both barrels to achieve sharp viewing. A locking diopter on the right eyepiece compensates for differences in the user's eyes. The Viper HD 10x50 is compatible with tripod adapters for use on tripods or car window mounts.