Nikon Binoculars Monarch 8x36 Magnification (x) 8 Objective diameter (mm) 36 Angular field of view (Real/degree) 7.0 Angular field of view (Apparent/degree) 56.0 Field of view at 1,000m (m) 122 Exit pupil (mm) 4.5 Relative brightness 20.3 Eye relief (mm) 17.0 Dioptre adjustment ±2 Close focusing distance (m) 2.5 Interpupillary distance adjustment (mm) 56-72 Weight (g) 570 Length (mm) 124 Width (mm) 129 Type Roof