Universal binocular area of use nature travel magnification 10 x lens diameter 36 mm prism system roof suitable for beginner intermediate exit pupil diameter 36 mm min focus distance 3 m angle of view 55 field of view in 1000 m 96 m twilight factor 19 relative brightness 12 96 diopter correction 3 0 dpt focussing system central focus viewing straight binocular coating fully multi coated weight 640 g colour black additional function