Compact binoculars area of use travel nature outdoor sports theatre magnification 10 x lens diameter 42 mm prism system schmidt pechan suitable for beginner intermediate exit pupil diameter 42 mm min focus distance 16 m angle of view 63 field of view in 1000 m 110 m twilight factor 205 relative brightness 17 64 diopter correction 3 0 dpt focussing system central focus viewing straight binocular weight 725 g colour black operating