Description
The binoculars are designed for use on the water and have the following features:
· Autofocus
· Magnification/lens 7x50
· BaK-4 Prism
· Angle of view: 6.6º
· Rubber reinforced
· Foldable eyepieces, great advantage for glasses wearers
Fully coated lenses
Nitrogen gas filled
· Waterproof
· Bearing compass with scale and light
· Includes float strap and bag
Autofocus
Automatically maintains 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: 6.6º
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 m at a distance of 1000 meters.
Fully coated
Allows 84% light transmission.
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