Helios Stellar II 16x80 BinocularsHigh quality filled observation binoculars, with individual eyepiece (IF) focusing, designed for medium to long range terrestrial and astronomical observations. They are fully waterproof (IPX7 standard, 1m depth for 30 minutes) and nitrogen filled for clear fog free operation. Shockproof design incorporating a robust but lightweight magnesium alloy body construction, covered in stylish protective black rubber armouring. Features BaK 4 prisms and a