Spotting scope area of use hunting nature bird watching wildlife watching golf magnification 45 x lens diameter 60 mm prism system roof exit pupil diameter 133 mm min focus distance 5 m angle of view 13 field of view in 1000 m 23 m twilight factor 52 relative brightness 1 77 focussing system central focus viewing monocular 45 angled coating fully multi coated weight 1 280 g eye relief 20 special features rubber armouring outdoor functi