All mariners, including those traveling south of the equator, will appreciate Nikon&';s OceanPro binocular with integral global compass. Designed to be used in Northern Hemisphere and Southern Hemisphere locations, the OceanPro with Global Compass and the standard OceanPro with 7x magnifi cation and 50mm objectives achieve optimum viewing even in rough water Built-in Illuminated Global Compass Automatic declination in Northern Hemisphere or Southern Hemisphere locations and integral scale for subject size and distance calculation. Multicoated Optics for Optimal Brightness Nikon&';s multicoated Eco-glass lenses bring crisp images and bright views to marine environments. Rubber Armored, Waterproof, Fogproof, Polycarbonate Body Engineered to the highest standards, OceanPro is built to withstand the toughest of marine conditions. Quick, Easy Central Focus and Long Eye Relief Smooth focus control and long eye relief offer fast subject acquisition and comfortable viewing with eyeglasses. Nylon Floating Strap Included with the OceanPro, a marine-specific floating nylon lanyard makes locating and retrieving lost binoculars easy. Key Features Bright, multicoated optics: Multiple layers of anti-reflective compounds offer excellent brightness and resolution. Smooth central focus knob: Fast range of focus for quick viewing. Generous eye relief: 22.7mm of eye relief provides comfortable viewing for eyeglass wearers. Large exit pupils: Maximum exit pupil ensures you 'catch&'; the image, even with motion at sea. Durable rubber armor: Gives you a solid surface to grip-even when wet. Waterproof/fogproof: Nitrogen filled and O-ring sealed.