Bushnell Marine 7x50 Porro Binoculars with Compass

Bushnell Marine is a waterproof marine binocular dedicated to sailors and professionals sailing on commercial fleet ships or naval vessels. Its above-average ruggedness also makes it a good choice when you need rugged, waterproof land binoculars, so we recommend it for uniformed service personnel, outdoor enthusiasts and also hunters. The Marine 137500 variant additionally features an internal illuminated compass and an analog rangefinder.

Sevenfold magnification with a 50mm objective lens are typical parameters for binoculars used in difficult lighting conditions and at night. It is also worth noting that the binoculars are built with a Porro-type prism system, so they offer a more stereoscopic, three-dimensional image than its compact roof-type counterpart.

To ensure maximum sealing and durability, the binoculars do not have the typical moving bridge that moves the eyepieces in Porro binoculars. Focus adjustment is provided by individual sharpening of each eyepiece, and thanks to the large depth of field , this operation is performed very rarely.

Technologies used:

- FMC (Fully MultiCoated): all air-glass boundaries have been multi-coated with anti-reflective coatings to minimize unwanted reflections and loss of light passing through the optics.

- BaK-4: the highest quality optical glass from which the prisms used in the binoculars are made. BaK-4 glass prisms offer a level of brightness and image clarity unmatched by binoculars using cheaper Bk-7 optical glass.

- Water Proof: the binoculars' tubes have been filled with dry nitrogen gas and sealed with O-rings, which prevents internal fogging of the lenses and makes the binoculars resistant to rain, sea breeze, dust and temporary immersion.

- Rubber Armour: a coating of high-quality rubber with a non-slip texture that provides a good grip even in wet or frozen hands, and protects the binoculars from damage from accidental knocks and even from falling from a low height.

A carrying case and rubber covers for the binoculars' lenses and eyepieces are included.

Technical specifications
Magnification: 7x
Lens diameter: 50 mm
Field of view: 117 m/1000 m
Output pupil: 7.1 mm
Pupil distance (eye relief): 18 mm
Prism system: Porro
Sharpening: individual on eyepiece
Maximum eye relief: 7.1 mm
Minimum focus: 10.6 m
Weight: 1050 g
Manufacturer: Bushnell, USA