Outdoor binoculars underwater binoculars area of use nature outdoor sports travel magnification 8 x lens diameter 43 mm prism system roof suitable for beginner intermediate exit pupil diameter 538 mm min focus distance 2 m angle of view 63 field of view in 1000 m 110 m twilight factor 185 relative brightness 28 94 diopter correction 3 0 dpt focussing system central focus viewing straight binocular coating multi coated weight 695 g