The Athlon Cronus G2 10x42 UHD Binocular is 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 Mule Deer in the high country, or filling your tag on an once in a lifetime Mountain Goat, don't leave anything to chance. Athlon designed the Cronus G2 10x42 UHD Binocular with their revolutionary E2ES lens system giving you a flat field of view. Athlon also added ED Glass resulting in a clearer and sharper image. Athlon's state of the art ESP (Enhance Spectral Prism) dielectric coating reflects 99% of the light through the prism assembly. The Athlon Cronus G2 10x42 UHD Binocular uses a Magnesium chassis to reduce weight while keeping the chassis rugged to withstand the scrapes and bumps of constant use. Includes Athlon's Lifetime Warranty.Features Power: 10 x Field of View: 338 ft Weight: 27.8 ozE2ES System- Edge 2 Edge Sharpness systemE2ES System is a field flattening system that produces sharper, clearer images all the way from one lens edge to the otherUHD GlassExtra-Low Dispersion glass gives you an image with little or no chromatic fringe so the final result brings an ultimate clearest and sharpest image to your eyesESP Dielectric Coating- Enhanced Spectral Prism Dielectric CoatingESP Dielectric Coating is a multi layer prism coating that reflects over 99% of the light to your eyes bringing you a clear, bright image that displays accurate color reproduction.Lightweight Magnesium ChassisMagnesium chassis give you the strength of a metal chassis while reducing the weight as much as 35%XPL Coating- Xtra Protective Layer coatingXPL Coating gives you an extra protection on the exterior lenses from dirt, oil and scratchesPhase Corrected prismsPhase corrected prisms produce images that have better contrast, a higher resolution and better color reproductionBaK4 prismsBak-4 glass prisms reflect more light to your eyes which will give you brighter and sharper image.Advanced FMCAdvanced Fully Multi-Coated lenses gives you better light transmission to bring optimum brightness and true color across the entire light spectrum.Locking DiopterLocking Diopter keeps the diopter adjustment knob from accidentally moving from the optimal settingLong Eye ReliefLong eye relief can be particularly important for eyeglass wearers because longer eye relief allows them to still see the entire field of view.Close FocusClose focus is important for those who are nature observers and especially important if you are going to watch butterflies or insectsTwist Up EyecupsTwist up eyecups with intermediate stops allow you to set the eyecups to the ideal eye relief for you eyesWaterproofWaterproof to protect the binocular in the harshest weather conditions or if accidentally submerged underwaterArgon PurgedArgon purging gives you better waterproofing and thermal stability