The 20x80mm Cosmos Binocular from Barska has been designed for astronomical viewing and long distance terrestrial observation in low-light conditions. The high quality BAK-4 Porro prisms and multicoated optics of the 20x80 Cosmos help maximize light transmission and increase image clarity, which is especially helpful for nighttime celestial viewing. This Cosmos Binocular has been constructed with an aluminum body to increase strength while reducing weight, and includes an integrated tripod mounting post. The Barska 20x80 Cosmos Binocular is fully waterproof and fogproof, ensuring years of durability and optical clarity in any environment.