Fully Multicoated Eco-Glass Lenses: Fully multicoated lenses deliver the ultimate in brightness and resolution. Phase-correction High Reflective Silver-alloy Prism Multicoatings: Clear, high-contrast images that display accurate color reproduction. Smooth Central Focus Knob: Fast range of focus for quick viewing. Precision Aligned Optics: For extended viewing on the toughest hunts. Flip-Down Objective Lens Covers: Protect lenses from dirt and scratches. Durable and Protective, Rubber-armored Coating: Provides a sure, non-slip grip, wet or dry. Lightweight, Slim Design: Provides excellent ergonomics, strength and ruggedness in a package that is comfortable to carry all day. Multi-setting Click Stop Eyecups: For a clear comfortable view, with or without eyeglasses. Waterproof/Fogproof: Nitrogen filled and O-ring sealed.