PERFECT FOR MARINE - Marine binoculars with 7x magnification and 50mm objective lens; 22 mm eye relief, 6.8 mm exit pupil, and field of view is 396 feet at 1000 yards / 132 meters at 1000 meters. ADAPTS TO EXTREME ENVIRONMENTS - Completely waterproof and floats in water. Nitrogen-purged, fog proofed, stable, comfortable to hold, and highly durable. BRIGHT AND CLEAR - Porro prism system for a wide field of view. Premium BAK4 prism and fully multi-coated optics produce bright, crisp images. COMPASS & RANGEFINDER - Illuminated compass built-in for direction location, with an internal rangefinder for determining distance and size of objects.
MILITARY STANDARDS - Non-slip rubber armor absorbs shock and provides a firm grip. Tripod adapter fitting for tripod mounting for increased stability