Universal binocular spotting scope area of use golf bird watching travel nature hunting wildlife watching magnification 8 x lens diameter 34 mm suitable for beginner intermediate exit pupil diameter 425 mm min focus distance 2 m angle of view 61 field of view in 1000 m 107 m twilight factor 165 relative brightness 18 06 focussing system central focus viewing straight binocular monocular coating fully multi coated weight 442 g eye relief