NIKON OCEANPRO 7x50 Black

Bright, multicoated optics: Multiple layers of anti-reflective compounds offer excellent brightness and resolution.
Generous eye relief: 22.7mm of eye relief provides comfortable viewing for eyeglass wearers.
Durable rubber armor: Gives you a solid surface to grip—even when wet.
Smooth central focus knob: Fast range of focus for quick viewing.
Large exit pupils: Maximum exit pupil ensures you ‘catch’ the image, even with motion at sea.
Waterproof/fog proof: Nitrogen filled and O-ring sealed.

Features:
Focusing System: Central Focus
Magnification: 7 x
Objective Diameter: 50 mm
Angular Field of View (Real): 7.2 °
Angular Field of View (Apparent): 50.4 °
FOV at 1000 yds: 378 ft
Close Focus Distance: 33 ft
Exit Pupil: 7.1 mm
Relative Brightness: 50.4
Eye Relief: 22.7 mm
Size (Length x Width): 7.6 x 8 in
Weight: 38 oz
Interpupilary Distance: 56 - 72 mm
Waterproof/Fogproof: Yes
Prism: Porro