Universal binocular area of use nature travel magnification 8 x lens diameter 25 mm prism system roof suitable for beginner intermediate exit pupil diameter 313 mm min focus distance 3 m angle of view 55 field of view in 1000 m 96 m twilight factor 141 relative brightness 9 8 diopter correction 3 0 dpt focussing system central focus viewing straight binocular coating fully multi coated weight 300 g colour black additional function