Universal binocular spotting scope area of use nature bird watching hunting travel wildlife watching golf magnification 10 x lens diameter 42 mm suitable for beginner intermediate exit pupil diameter 42 mm min focus distance 2 m angle of view 623 field of view in 1000 m 109 m twilight factor 205 relative brightness 17 64 viewing straight binocular monocular coating phasen vergtung weight 1 650 g eye relief 76 materials plastic metal