Top-quality waterproof, nitrogen-filled observation binoculars with individual helical eyepiece focusing, designed for medium-to-long-range terrestrial and astronomical observations. Incorporating oversized BAK-4 prisms and a fully broadband multi-coated optical system. The top quality triplet objective lenses deliver superb, semi-apochromatic optical performance. Supplied with three pairs of 1.25" eyepieces. Eyepieces are angled at 90 deg. making them ideal for high-angle astronomical viewing. Features carrying handle, built-in lens hoods and tripod adaptor. High quality precision all-metal construction. Supplied in foam-lined Aluminium storage/carrying