"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. In the 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.|FUJINON'S unique EBC coating allows 95% of light to pass through the binocular Great for low light performance.|Field flattener lens provides sharp images from edge to edge with no distortion.|Designed with waterproof and fogproof seals (Nitrogen Purged). O ring sealed.|Rubber armored body allows user to have a firm grip, even with one hand.|Long eye relief (23mm) is great for those who wear glasses.|7x50 FMTRC-SX model is equipped with a worldwide compass.|Mil spec shock and impact resistant body construction."