The Fujinon 10×70 FMT-SX Polaris is a military-spec pair of astronomy binoculars with a high >95% brightness factor across the visible spectrum. Key features include:
10x magnification, 70mm objective lens
53º apparent FOV, 5.3º true FOV
Porro prism optical path
Waterproof, accepts filters, excellent 23mm eye relief
Ultimate Stargazers. Among the highest rated in its class, the Fujinon 10×70 FMT-SX Polaris offers stunningly bright imagery with eyepieces that are equipped with five optical glass lens elements for a field of view with little coma, almost no distortion, and suppressed color fringing. With an exit pupil of 7mm, these binoculars have no trouble filling more of your eye with available light, making them the ideal pair for dawn, dusk, and night sky viewing.
Marine Grade. These binoculars meet US military specs for waterproofness, lasting up to five minutes when submerged. The airtight, nitrogen-purged, O-ring-sealed aluminum alloy housing ensures they can withstand harsh conditions. Even in very cold temperatures, you can adjust the spacing of the barrels easily and they hold their position well and in warmer climates you can depend on the dry nitrogen to prevent fogging. To cut glare or pollution, the Fujinon 10×70 FMT-SX Polaris accepts 52mm filters.
Maximum Comfort. Offering an exceptional eye relief distance of 23mm, these binoculars will be very comfortable for those wearing even bulkier glasses. The eyepieces themselves are around 2" in diameter, which minimizes blackout effects, allows for easier eye alignment, and provides a more immersive viewing experience. A drawback is that these are heavy! At over 4 pounds, you may want to connect them to a support system (they are equipped with a standard 1/4"-20 tripod mount thread). What you suffer in weight you gain in quality and the Fujinon 10×70 FMT-SX Polaris remain a favorite among marine and fishing pros, astronomy buffs, and birders.
