Compact binoculars area of use travel nature magnification 10 x lens diameter 25 mm prism system roof suitable for beginner intermediate children exit pupil diameter 25 mm min focus distance 25 m angle of view 56 field of view in 1000 m 98 m twilight factor 158 relative brightness 6 25 diopter correction 5 0 dpt focussing system central focus viewing straight binocular coating fully multi coated weight 350 g eye relief 17 colour