Vortex Viper HD 10x42 binoculars are excellent HD binoculars for game viewing, bird watching and general use. Optical Features: HD Lens Elements Premium extra-low dispersion glass delivers the ultimate in resolution and colour fidelity, resulting in high-definition images. XR Fully Multi-Coated Proprietary coatings increases light transmission with multiple anti-reflective coatings on all air-to-glass surfaces. Dielectric Coating Multi-layer prism coatings provide bright, clear, colour-accurate images. Phase Correction Coating on roof prism models enhances resolution and contrast. Construction Features: Roof Prism Valued for greater durability and more compact size. Waterproof O-ring seals prevent moisture, dust and debris from penetrating the binocular for reliable performance in all environments. Fogproof Argon gas purging prevents internal fogging over a wide range of temperatures. ArmorTek Ultra-hard, scratch-resistant coating protects exterior lenses from scratches, oil and dirt. Rubber Armor Provides a secure, non-slip grip, and durable external protection. Convenience Features: Adjustable Eyecups Twist up and down for comfortable viewing with or without eyeglasses. Center Focus Wheel Adjusts the focus of both binocular barrels at the same time. Diopter Adjusts for differences in a user's eyes. Located on right eyepiece. Tripod Adaptable Compatible with a tripod adapter, allowing use on a tripod or car window mount.SPECS Magnification 10x

Lens Diameter 42 mm Eye Relief 17 mm Exit Pupil 4.2 mm Linear Field of View 341 feet/1000 yards Angular Field of View 6.5 degrees Close Focus 6.5 feet Interpupillary Distance 56-75 mm Height 5.6 inches Width 4.9 inches Weight 24.9 oz What's in the box 1 x Rainguard Eyepiece Cover 1 x Tethered objective lens covers 1 x Comfort neck strapGlassPak Binocular Harness