Universal binocular area of use travel nature magnification 8 x lens diameter 42 mm prism system roof exit pupil diameter 525 mm min focus distance 2 m angle of view 67 field of view in 1000 m 116 m twilight factor 183 relative brightness 27 56 focussing system central focus viewing straight binocular weight 800 g special features rubber armouring outdoor function waterproof