The Argos G2 842 UHD has a secure,ergonomic, and comfortable one-handed grip. They come with superior qualityAdvanced fully multi-coated lenses for sharp contrast, true colour, andexcellent light-gathering capabilities. They also have Bak-4 prism glassfeaturing our ne.w ESP Dielectric coating and phase correction for colourfidelity and sharpness. Argon gas purging makes the Argos binoculars waterproofand fog proof. A lightweight magnesium alloy chassis reduces weight, taking thestrain off your neck but making it strong enough for the harshest environments.UHD Glass:Extra-low dispersion glass gives you animage with little or no chromatic fringe so the final result brings a clearerand sharper image to your eyesXPL Coating- Xtra Protective Layercoating:XPL Coating gives you extra protectionon the exterior lenses from dirt, oil, and scratchesLightweight Magnesium Chassis:Magnesium chassis give you the strengthof a metal chassis while reducing the weight by as much as 35%Phase Corrected prisms:Phase-corrected prisms produce imagesthat have better contrast, a higher resolution, and better colour reproductionBaK4 prisms:Bak-4 glass prisms reflect more lightto your eyes which will give you a brighter and sharper image.Advanced FMC:Advanced Fully Multi-Coated lenses giveyou better light transmission to bring optimum brightness and true colouracross the entire light spectrum.Long Eye Relief:Long eye relief can be particularlyimportant for eyeglass wearers because longer eye relief allows them to stillsee the entire field of view.Close Focus:Close focus is important for those whoare nature observers and especially important if you are going to watchbutterflies or insectsTwist-Up Eyecups:Twist-up eyecups with intermediatestops allow you to set the eyecups to the ideal eye relief for your eyesWaterproof:Waterproof to protect the binoculars inthe harshest weather conditions or if accidentally submerged underwaterSpecifications:Power: 8xObjective Lens Diameter: 42mmEye Relief: 17.3 mmField of View Angular: 7.1 degreesField of View FT @1000 YARDS: 371 ftField of View M @1000 METERS: 137 mClose Focus: 4 m/13 ftInterpupillary Distance: 56mm-76mmWeight: 25.5 oz