Outdoor binoculars area of use nature travel outdoor sports magnification 8 x lens diameter 42 mm prism system roof exit pupil diameter 525 mm min focus distance 23 m angle of view 75 field of view in 1000 m 131 m twilight factor 183 relative brightness 27 56 focussing system central focus viewing straight binocular coating fully multi coated weight 765 g eye relief 18 included in delivery lens caps special features for spectacle weare