20x80 Waterproof

Key Features ：
● BAK4 Porro Prism Optical
● Slip-Resistant Rubber Armoring
● Tripod Adaptable with Optional Adapter
●XLT Fully Multi-Coated Optics
● Twist-Up   Rubber Eyecups
● Impact resistant aluminum alloy mirror body
● Wide-Angle Viewing: 66°
● Center Focusing with Diopter Adjustment
● 18.0mm eye relief  (Grow out eye mask design)
Overview ：
The 20x80 HD  Binoculars feature a proprietary XLT multi-coating 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 70mm 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 20x80 HD Pro binoculars fairly heavy with a center of gravity biased forward, so hand-holding it 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 waterproof and fogproof.
Optical Performance:
● 20x magnification
● 80mm objective lenses deliver bright images in low light and allow stargazing
● BAK4 Porro prism light path produces a rich depth of field to more easily discern the relative distances between two objects in the field of view

● Antireflection fully coated optics ensure images are bright and clear with improved contrast and accurate color representationProprietary XLT fully multi-coated optics increase light transmission for bright high-contrast images
● Ultrawide 66° apparent angle of view helps to minimize the distracting hand shake common with high-power optics while providing a spacious panoramic view

● 174' field of view at 1000 yards
Use and Handling ：
● ±4 dioptric correction
● 58 to 72mm interpupillary adjustment range
● Twist-Up  rubber eyecups for comfortable use with or without eyewear
● Includes winged eyecups to block stray peripheral light that can affect vision
● 4.0mm exit pupil will completely cover pupils as they open in low light
● 18.0mm eye relief
Construction Details ：
● Impact resistant aluminum alloy mirror body
● Protective rubber armoring with dimpled palm-pad accents provide a secure and slip-resistant grip
● Includes carrying case and neck strap
● Large textured center focus wheel
● Weight:  71.25 ounces
Specifications Performance