The World`s Brightest 7x50 Binoculars In the new Fujinon "SX" series binoculars, every lens and prism surface is coated with a special new EBC process. The result is an overall brightness factor of 95% across the full visible spectrum - images up to some 15% brighter than any other high quality binoculars! Testing proved it. So will your own eyes. The benefit is outstanding vision in low light and at night - an especially important consideration in marine applications. Except for electronically amplified optical systems, such as those used in night vision scopes, Fujinon SX binoculars deliver the brightest image possible.
The 7x50 binocular with compass was developed as a new series of 7 power binoculars which were popular over many years for use on commercial ships and fishing vessels. We have now incorporated even more features. Because they are fitted with rubber covers, they fit comfortably in you hands, are easy to handle, and what`s more, they have superior internal protective features, which makes them ideal for use at sea.
Rubber armored with compass.
In this case, the compass indication when sighting the buoy is 240 degrees, and when sighting the direction of the ship`s bow, it is 270 degrees. Therefore, the ship is corrently moving in a direction 30 degrees left of the buoy.
Height of target object 10 A(m)= --------------------------- x1000 = ----x 1000 = 250m Scale Value(MIL) 40
The height of the lighthouse is 10m, and at this time the scale shows 40MIL. By applying this to a simple formula, you can find out the approximate distance.