1852 binoculars 7x50 bak-4 prism, captain with compass & waterproof

1852 binoculars Captain 7x50 with compass, waterproof/floating

The binoculars are designed for use on the water and have the following features:
Individual focus
· Magnification/lens 7x50
· BaK-4 Prism
· Angle of view: 7.5 (132m at 1000m)
· Shock-absorbing black/blue rubber reinforcement
· Foldable eyepieces, a great advantage for glasses wearers
Nitrogen gas filled
· Fully multi-coated
· Waterproof
· Floats
· With compass
· Comes with bag and strap

Individual focus
First, each eyepiece is adjusted manually, then the binoculars automatically maintain focus.

Magnification/lens 7x50
The image is 7 times larger than what the naked eye sees. 7x is the recommended magnification in marine binoculars. The second number 50 indicates the diameter of the lens. The higher the number, the better the light penetration. This is an advantage in poor light. For marine use, a 50 mm lens is recommended.

BaK-4 Prism
Barium prism material. Has excellent ability to transport light and image from the objective lens, through the prisms to the eyepiece and out to the eye. BK-4 is an excellent quality optic.

Viewing angle: 7.5
The viewing angle in degrees indicates the width of the image that can be seen at a distance of 1000 meters. A viewing angle of 7.5º gives a width of 132 m at a distance of 1000 meters.

Fully multi-coated
Allows 95% light transmission.


Uses 2 x LR936 batteries.

Waterproof marine binoculars with compass from Marine Quality 1852

Specifications

Focus system: Individual focus
Size: 20 x 8 x 15 cm
Weight: 885g
Viewing angle: 7.5°
Prism: BK-4