Nikon MONARCH 5 12x42 7544 Binocular Dielectric High-Reflective Multilayer Prism Coating - This technique provides almost the same brightness as that perceived by the naked eye, and clear, high-contrast images that display accurate color reproduction. Fully multicoated lenses - Fully multicoated lenses deliver the ultimate in brightness and resolution. Lightweight, slim design w/ Durable and protective, rubber-armored coating - Provides a sure, non-slip grip, wet or dry with excellent ergonomics, strength and ruggedness in a package that is comfortable to carry all day. Smooth central focus knob - Fast range of focus for quick viewing. Waterproof/fogproof - Nitrogen filled and O-ring sealed.