Universal binocular area of use nature travel magnification 8 x lens diameter 42 mm prism system roof exit pupil diameter 525 mm min focus distance 198 m angle of view 81 field of view in 1000 m 141 m twilight factor 183 relative brightness 27 56 focussing system central focus viewing straight binocular coating multi coated weight 680 g special features for spectacle wearers outdoor function waterproof