Nikon Binoculars Monarch 10x56 Magnification (x) 10 Objective diameter (mm) 56 Angular field of view (Real/degree) 6.0 Angular field of view (Apparent/degree) 60.0 Field of view at 1,000m (m) 105 Exit pupil (mm) 5.6 Relative brightness 31.4 Eye relief (mm) 17.4 Dioptre adjustment ±2 Close focusing distance (m) 10 Interpupillary distance adjustment (mm) 60-72 Weight (g) 1,155 Length (mm) 197 Width (mm) 144 Type Roof