Universal binocular area of use nature travel magnification 9 x lens diameter 28 mm prism system roof suitable for beginner intermediate exit pupil diameter 311 mm min focus distance 3 m angle of view 56 field of view in 1000 m 98 m twilight factor 159 relative brightness 9 67 diopter correction 3 0 dpt focussing system central focus viewing straight binocular coating fully multi coated weight 365 g colour black additional functio