Among the world's greatest boating binoculars, the military-specificationFujinon 7x50 FMTRC-SX Polaris Binocular with Compasstransmits an incredible >95% of the light reaching the binocular and has Fujinon's EBC multi-coatings on every optical surface. It is also equipped (as is any Fujinon Polaris series binocular) with flat-field, distortion-free eyepieces that accept optional filters and are ideal for astronomy applications.
The 100% fog and waterproof 7x50 Polaris withstands drastic temperature and humidity changes with ease, has abundant eye relief for use with sunglasses in bright conditions, and is simply the brightest, highest-resolution 7x50 boating binocular money can buy. This version of the 7x50 Polaris has both a rubber-armored exterior and an internal compass with rangefinding reticle. While the compass is electronically controlled for rapid response to bearing changes, illumination is by a natural daylight-gathering window. At night, you will need the optional external compass illuminator.
Fujinon's best military-specification 7x50 Porro prism binocular with a 7.5° angle of view
Nitrogen-purged water and fogproof lenses
Up to 13 Fujinon EBC multi-coatings on all optical surfaces
56-74mm interpupillary adjustment range
Thick and protective rubber armor on an all-metal housing
Internal compass with rangefinding reticle to help estimate distances of nearby watercraft