Nikon 16x50 Action EX Features: Waterproof (up to 1 meter for 5 minutes) and fog-free with nitrogen gas filling High-eyepoint design provides a clear field of view even for eyeglass wearers Turn-and-slide rubber eyecups with multi-click facilitate easy positioning of eyes at the correct eyepoint Multilayer-coated lenses and large objective diameter for optimal image clarity Rubber armouring for shock resistance and a firm, comfortable grip Eco-glass optics are free of lead and arsenic Specifications: Magnification (x) 16 Objective Diameter (mm) 50 Angular field of view (real/degree) 3.5 Angular field of view (apparent/degree) 56 Field of view at 1000 meters (m) 61 Exit pupil (mm) 3.1 Relative brightness 9.6 Eye relief (mm) 17.8 Close focusing distance (m) 7 Interpupillary distance (mm) 56-72 Weight (g) 1040 Length (mm) 177 Width (mm) 196 Price: £249.00 Quantity: