All lenses are 100% fully multi-coated lenses also feature water repellent coatings bak-4, phase coated roof prisms  extremely compact size for a 10 x 32 binocular extra-low dispersion (ed) glass produces outstanding color fidelity and high image quality large aperture apochromatic (apo) lens provides higher image quality in all lighting conditions dielectric high-reflective multilayer prism coating close focus distance - 3.92 ft. Extremely bright in all environments long eye relief of 17.5 mm and twist up eyecups - great for eyeglass wearers nitrogen filled and fully water and fog proof. Submerge to 1 meter for 15 minutes sturdy and lightweight fiberglass reinforced polycarbonate chassis. Protective armored rubber covering provides an easy non slip grip 288.2 ft. Wide field of view at 1000 yards ergonomic open hinge design tripod adaptable using an optional tripod adapter. Prism coatings dielectric lens: Ed (extra low dispersion glass) prism system: Dash (bak-4) metal focus wheel yes ( aluminum ) lens coating: Fmc (fully multi coated) eye relief: 17.5mm waterproof: Yes. Up to 1 meter for 15 minutes ip77 yes fog proof: Yes field of view at 1000 yards: 288.2 ft. Field of view degrees: 5.5 exit pupil: 3.02 mm focus type: Center focus close focusing distance: 3.92 ft. Eyepiece groups & elements: 4g5e (4 groups, 5 elements) objective lens groups & elements: 4g5e (4 groups, 5 elements) prism type: Open hinge/roof prism barrel: Fiberglass reinforced polycarbonate weight: 13.4 oz. Dimensions: 4.25 x 4.64 x 1.57 in. .