Bushnell Marine 7x50 Porro Binoculars with Compass

Bushnell Marine offers a waterproof marine binocular designed for sailors and professionals operating on commercial fleets or naval vessels. Its superior ruggedness also makes it ideal for those in need of durable, waterproof binoculars for land use, thus recommended for uniformed services, outdoor enthusiasts, and hunters. The Marine 137500 model additionally includes an internal illuminated compass and an analog rangefinder.

Magnification of seven times with a 50mm objective lens is standard for binoculars intended for challenging lighting conditions and nighttime use. It's worth mentioning that these binoculars incorporate a Porro-type prism system, offering a more stereoscopic, three-dimensional image compared to their compact roof-type alternatives.

To guarantee optimal sealing and durability, these binoculars lack the typical moving bridge found in Porro binoculars that adjusts eyepieces. Focus is adjusted by individually sharpening each eyepiece, and due to the large depth of field , this is infrequently required.

Technologies used:

-FMC (Fully MultiCoated): every air-glass interface is multi-coated with anti-reflective coatings to reduce unwanted reflections and light loss through the optics.

-BaK-4: premium optical glass used in the prisms of these binoculars. BaK-4 glass prisms deliver superior brightness and image clarity not found in binoculars using lower-quality Bk-7 optical glass.

-Water Proof: binocular barrels are filled with dry nitrogen gas and sealed with O-rings, preventing lens fogging and ensuring resistance to rain, sea spray, dust, and temporary immersion.

- Rubber Armour: a non-slip textured high-quality rubber coating that ensures a firm grip even with wet or frozen hands, protecting the binoculars from accidental impacts and falls from low heights.

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

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