Popular mid-range Meopta binocular with a lightweight, rugged magnesium-alloy chassis and shock-proof rubber armor. Extra-low-dispersion (ED) fluoride HD glass, fully multi-coated optics, dielectric-coated and phase-corrected BAK4 roof prisms, anti-scratch and hydrophobic coatings, metal twist-up eyecups. Nitrogen-purged, waterproof and fogproof.