Designed for serious glassing, with exceptional edge-to-edge clarity, sharp detail enhancement, ultra-clear brightness, and true colour representation. We designed these binoculars with our revolutionary E2ES lens system that gives you a flat field of view. We included Extra-Low Dispersion Glass lenses that result in a clearer and sharper image. Our state-of-the-art ESP (Enhance Spectral Prism) dielectric coating reflects 99% of the light through the prism assembly. We use a Magnesium chassis to reduce weight while keeping the chassis rugged to withstand the scrapes and bumps of constant use.- E2ES System- Edge 2 Edge Sharpness system: E2ES System is a field flattening system that produces sharper, clearer images all the way from one lens edge to the other- UHD Glass: Extra-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 eyes- ESP Dielectric Coating- Enhanced Spectral Prism Dielectric Coating: ESP 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 colour reproduction.- Lightweight Magnesium Chassis: Magnesium chassis gives you the strength of a metal chassis while reducing the weight by as much as 35%- XPL Coating- Xtra Protective Layer coating: XPL Coating gives you extra protection on the exterior lenses from dirt, oil, and scratches- Phase Corrected prisms: Phase-corrected prisms produce images that have better contrast, a higher resolution and better colour reproduction- BaK4 prisms: Bak-4 glass prisms reflect more light to your eyes which will give you a brighter and sharper image.- Advanced FMC: Advanced Fully Multi-Coated lenses give you better light transmission to bring optimum brightness and true colour across the entire light spectrum.- Locking Dioptre: Locking Dioptre keeps the dioptre adjustment knob from accidentally moving from the optimal setting- Long Eye Relief: Long eye relief can be particularly important for eyeglass wearers because longer eye relief allows them to still see the entire field of view.- Close Focus: Close focus is important for those who are nature observers and especially important if you are going to watch butterflies or insects- Twist Up Eyecups: Twist-up eyecups with intermediate stops allow you to set the eyecups to the ideal eye relief for your eyes- Waterproof: Waterproof to protect the binoculars in the harshest weather conditions or if accidentally submerged underwater- Argon Purged: Argon purging gives you better waterproofing and thermal stabilitySpecifications:- Power: 10x- Objective Lens Diameter: 42mm- Eye Relief: 19.3mm- Field of View Angular: 6.5 degrees- Field of View FT @1000 YARDS: 338 ft- Field of View M @1000 METERS: 113m- Close Focus: 2 m/6.5 ft- Interpupillary Distance: 56mm-73mm- Weight 27.8 oz