Description
Binoculars which are nitrogen-filled, which ensures clarity in the image and a large front lens of Ø80 mm
· Magnification/lens 20-60 x 80· BK-7 prisms
· Broadband Multi coated optics
· Nitrogen gas filled
· Field of view at 1000 m: 31-17.5 meters
· Exit pupil: 4-1.33 mm
· Closest focus: 6 meters
· Waterproof: 1.5 m/3 min
· Incl. bag
Magnification/lens 20-60 x 80
The image is from 20-60 times larger than what the naked eye sees. 7x is the recommended magnification in marine binoculars. The second number 80 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.
BK-7 Prism
Borosilicate prism material of class B. Has a good ability to transport light and image from the objective, through the prisms to the eyepiece and out to the eye.
Multi Coated
Allows 90% light transmission.