Watersport binoculars from Marine Quality 1852 which are waterproof and with optimal magnification and light incidence
The binoculars are designed for use on the water and have the following functions: · Center focus · Magnification/lens 7x50 · BaK-4 Prism · Viewing angle: 6.6 (115m/1000m) · Black/blue rubber reinforcement · Foldable eyepieces - great advantage for spectacle wearers · Fully multi coated lenses · Waterproof · Comes with bag and strap
Center focus Manual focus with central adjustment.
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 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 m at a distance of 1000 meters.
