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Designed as an ideal optic for wide-view astronomical or long-range terrestrial observation, the Barska 20x80 Cosmos WP Binocular features multi-coated optics to reduce reflection and increase light transmission through the entire optical system, and traditional Porro prisms that provide a rich depth of view and high-contrast to draw users into an immersive viewing experience. This combination of optical coatings, prisms, over-sized objectives, and individually focusable eyepieces produce high-contrast views that are bright, clear and crisp, and tack-sharp.
To help offset the weight of the large objectives, Barska manufactured the chassis out of a durable aluminum alloy with a textured armoring on the outside to help protect from bumps and impacts while offering a slip-resistant grip. Due to the Cosmos' large objectives and long optical tubes it can feel fairly heavy with a center of gravity biased forward, so hand-holding it may cause fatigue and noticeable hand-shake. To facilitate putting it on stabilizing systems, its center stabilizer bar has a built-in 1/4"-20 tripod adapter to mount the instrument. To handle a wide range of environments, the optical tubes are O-ring sealed to be water and fogproof.
Powerful 20x magnification
Oversized 80mm objective lenses
BAK4 Porro prism optical path
Anti-reflection multi-coated optics increase light transmission and contrast, and improves color rendition
157' field of view at 1000 yards
Wide 60° apparent angle of view
Use and Handling
Ideal for wide-field astronomical or long-distant terrestrial use
Center stabilizer bar
Integrated 1/4"-20 tripod mount
Sliding mount enables proper balancing on tripod/head
Individual eyepiece focusing allows for precise tack-sharp views
Fold-down rubber eyecups for use with or without eyewear
Comfortable 4mm exit pupil
Long 15.4mm eye relief
Lightweight and durable aluminum alloy chassis
Textured rubber armoring provides a slip-resistant grip with impact protection