Description
Waterproof binoculars with excellent quality optics.
The binoculars are designed for use on the water and have the following functions:· Center focus
· Magnification/lens 8x42
· BaK-4 Prism
· Viewing angle: 6.6 (116m v/1000m)
· Black rubber reinforcement
· Pop up eye cups
· Nitrogen gas filled
· Multi Coated
· Waterproof 1.5M/30min
· Comes with bag and strap
Center focus
Manual focus with central adjustment.
Magnification/lens 8x42
The image is 8 times larger than what the naked eye sees. 7x is the recommended magnification in marine binoculars. The second number 42 indicates how large the diameter of the lens is. The higher the number, the better the incidence of light. This is an advantage in low 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, through the prisms to the eyepiece and out to the eye. The BK-4 is an excellent quality optic.
Viewing angle: 6.6
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 6.6º gives a width of 115.3 m at a distance of 1000 meters.
Multi Coated
Allows 90% light transmission.