Spotting scope area of use nature hunting bird watching wildlife watching golf magnification 15 x lens diameter 50 mm prism system porro exit pupil diameter 333 mm min focus distance 35 m angle of view 22 field of view in 1000 m 38 m twilight factor 274 relative brightness 11 09 focussing system central focus viewing monocular 45 angled coating fully coated weight 646 g eye relief 14 included in delivery eyepiece hardcase pouch trip