Compact binoculars area of use travel nature magnification 10 x lens diameter 25 mm prism system porro exit pupil diameter 25 mm min focus distance 25 m angle of view 63 field of view in 1000 m 110 m twilight factor 158 relative brightness 6 25 focussing system central focus viewing straight binocular coatings fully multi coated bak4 weight 280 g special features rubber armouring outdoor function waterproof