CE20X81SM

72031

Celestron

Designed as an ideal optic for wide-view astronomical or long-range terrestrial observation, the Celestron 20x80 SkyMaster Pro Binoculars feature a proprietary XLT multicoating system to reduce reflection and increase light transmission through the entire optical system. The porro prism configuration provides a rich depth of view and high contrast to draw users into an immersive observational experience. The combination of optical coatings, prism, and oversized 80mm objectives produces high-contrast views that are bright and crisp with accurate color fidelity.To help reduce weight, the binoculars' housing is made from a combination of polycarbonate polymer and aluminum. The aluminum provides strength in key areas, while the polycarbonate is temperature resistant to limit expansion and contraction in extreme temperatures, which can cause the optical components to move out of collimation and prevent the ability to achieve sharp focus. Large objectives and long optical tubes make the SkyMaster Pro binoculars fairly heavy with a center of gravity biased forward, so hand-holding may cause fatigue and noticeable hand shake. A center stabilizer bar has a built-in 1/4"-20 tripod adapter to mount the instrument, with a detachable rail for a red-dot finderscope. To handle a wide range of environments, the optical tubes are nitrogen filled and O-ring sealed to be fog and waterproof.Optical Performance 20x magnification80mm objective lensesBAK4 porro prism optical pathProprietary XLT fully multicoated optics increase light transmission for bright high-contrast images168' field of view at 1000 yards64 wide-angle viewing15.5mm eye relief, 4.0mm exit pupilUse and Handling 4 dioptric correction2.2 to 2.8" interpupillary adjustment rangeDetachable RSR (Reflex Sight Ready) rail for attaching an optional red-dot finderscopeTraditional fold-down eyecups for comfortable use with or without eyewearIncludes winged eyecups to block stray peripheral light that can affect visionConstruction Details Lightweight and durable polycarbonate and aluminum chassisNitrogen filled for fog and waterproof performanceRubber armor protects against impacts and provides slip-resistant gripBuilt-in tripod adapter for easy mounting