"Completely redesigned for 2016, the Diamondback binocular once again redefines the price vs performance ratio in the world of optics. Functionally, as well as aesthetically, the short hinge and upscale sleek new look not only grabs the eye, but leaves more room for your hands-making them physically easier to hold. An all new optical system with enhanced, dielectric fully multi-coated lenses serves up stunning, views and impressive low-light performance-critical attributes when working to glass up and evaluate game. And with their ultra-wide, best-in-class, field of view, you can efficiently cover ground and acquire subjects with ease. Optical Fully Multi-Coated Increase light transmission with multiple anti-reflective coatings on all air-to-glass surfaces. Dielectric Coating Multi-layer prism coatings provide bright, clear, color-accurate images. Construction Argon Gas Argon gas-purged and O-ring-sealed for fog proof and waterproof performance. Fog proof Argon gas purging prevents internal fogging over a wide range of temperatures. Waterproof O-ring seals prevent moisture, dust and debris from penetrating the binocular for reliable performance in all environments. Rubber Armor Provides a secure, non-slip grip and durable external protection. Convenience Adjustable Eyecups Twist up and down f"