This updated 2018 version of the Vortex Viper HD 8x42 Binocula rgets upgraded with a wider field of view and longer eye relief from the previous iteration to make views more spacious and viewing through them easier and more comfortable.
Optically, this binocular benefits from proprietary XR anti-reflection fully multi-coated optics that maximise light transmission through the light path and improve contrast and colour rendition across the entire visual spectrum. The compact roof prisms are dielectric coated. Phase-corrected coatings limit internal interference, light loss, and diffraction while maximising light transmission through the prism system. These features work together to produce bright, sharp, and clear high-contrast views with accurate colour fidelity and crisp resolution. The larger objective lenses boost its light-gathering capabilities to draw in the available light and maintain bright images even when conditions are less than ideal, such as in the pre-dawn and late dusk hours or when looking into dense brush or using under heavy cloud cover.
Complementing the optical performance are construction details that allow the Viper HD to withstand the rigours of the trail. The optical tubes are O-ring sealed andargon filled to be waterproof and resistant to internal fogging if the weather turns or they take an accidental spill in a stream or puddle. Protecting the optical components is a polycarbonate chassis that is lightweight and durable as well as resistant to the expansion and contraction that metal suffers from and which can lead to fuzzy views over time. Vortex includes a GlassPak binocular harness case that protects the optic when not in use while keeping it close to your body, preventing swinging and swaying as you move or climb over rough and rocky terrain. Objective lens caps and a one-piece ocular rainguard protect the exterior lens surfaces. To keep the caps and rainguard safe during use, they are tethered to the body and strap, respectively.