Universal binocular area of use nature bird watching hunting travel magnification 10 x lens diameter 30 mm prism system roof exit pupil diameter 3 mm min focus distance 25 m angle of view 6 field of view in 1000 m 105 m twilight factor 173 relative brightness 9 focussing system central focus viewing straight binocular coating fully multi coated weight 420 g special features for spectacle wearers rubber armouring outdoor function waterproo