USN Mil Spec 7 x 50 Binoculars - Science Gifts

Waterproof Nitrogen-Filled
Made in USA by Fujinon

The same binocular Fujinon supplied to the USN for demanding sea duty. These brand new 7 x 50 binoculars meet or exceed military requirements for strength, performance and quality.

For maximum light transmission and image brightness, all optical surfaces are coated with magnesium fluoride. The lenses and Bak-4 prisms are sealed within light alloy housings from which all air, moisture and contaminants have been purged by dry nitrogen.

The eyepieces are O-ring sealed. 100% waterproof and impervious to temperature extremes from -20°C to +70°C.

For protection against impact and better grip, the binocular housing is covered with a strong, durable rubber coating. The eyepieces provide a focusing adjustment range of ±4 diopters with 1-diopter calibration. Includes neck strap and lens covers. Weighs 2.9 lbs.

Specifications:
Magnification: 7x
Objective Lens Diameter: 50mm
Eye Relief: 18mm
Apparent Field of View: 380 ft.
Exit Pupil: 7.1mm
Relative Brightness: 51
Interpupillary Distance: 60-70mm
Dimensions: 8.75" L x 8" W