Universal binocular polycarbonate frame area of use nature travel magnification 10 x lens diameter 42 mm prism system roof exit pupil diameter 42 mm angle of view 58 field of view in 1000 m 104 m twilight factor 20 relative brightness 18 focussing system central focus viewing straight binocular coating fully multi coated weight 629 g eye relief 14 special features for spectacle wearers rubber armouring outdoor function waterproof prism