Universal binocular area of use nature bird watching hunting travel wildlife watching golf magnification 8 x lens diameter 26 mm prism system roof suitable for beginner intermediate exit pupil diameter 325 mm min focus distance 2 m angle of view 67 field of view in 1000 m 117 m twilight factor 144 relative brightness 10 56 focussing system central focus viewing straight binocular monocular coating phasen vergtung weight 286 g material