Universal binocular area of use nature travel magnification 8 x lens diameter 36 mm prism system roof suitable for beginner intermediate exit pupil diameter 45 mm min focus distance 3 m angle of view 66 field of view in 1000 m 114 m twilight factor 17 relative brightness 20 25 diopter correction 3 0 dpt focussing system central focus viewing straight binocular coating fully multi coated weight 640 g colour black additional function