The Argos G2 1050 HD has a secure, ergonomic, and comfortable one-handed grip. They come with superior quality Advanced fully multi-coated lenses for sharp contrast, true colour, and excellent light-gathering capabilities. They also have Bak-4 prism glass featuring our ne.w ESP Dielectric coating and phase correction for colour fidelity and sharpness. Argon gas purging makes the Argos binoculars waterproof and fog proof. A lightweight magnesium alloy chassis reduces weight, taking the strain off your neck but making it strong enough for the harshest environments. ESP Dielectric Coating- Enhanced Spectral 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. XPL Coating- Xtra Protective Layer coating: XPL Coating gives you extra protection on the exterior lenses from dirt, oil, and scratches Lightweight Magnesium Chassis: Magnesium chassis give you the strength of a metal chassis while reducing the weight by as much as 35% Phase Corrected prisms: Phase-corrected prisms produce images that have better contrast, a higher resolution, and better color 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. 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 Specifications: Power: 10x Objective Lens Diameter: 50mm Eye Relief: 17mm Field of View Angular: 5.8 degrees Field of View FT @1000 YARDS: 304 ft Field of View M @1000 METERS: 112 m Close Focus: 4 m/13 ft Interpupillary Distance: 56mm-76mm Weight: 31.5 oz