A 15x56 binocular designed for serious glassing with exceptional edge-to-edge clarity sharp detail enhancement ultra-clear brightness and true color representation. Whether you are on your annual hunt for whitetails on the family farm in Alabama or filling your tag on a once-in-a-lifetime Montana Big Horn don't leave anything to chance. Athlon included extra-low dispersion UHD glass resulting in a clearer and sharper image. Their state-of-the-art ESP (Enhance Spectral Prism) dielectric coating reflects 99% of the light through the prism assembly. They use a Magnesium chassis to reduce weight while keeping the chassis rugged to withstand the scrapes and bumps of constant use.