Monocular area of use nature magnification 10 x lens diameter 25 mm prism system roof exit pupil diameter 25 mm angle of view 55 field of view in 1000 m 96 m twilight factor 158 relative brightness 6 25 diopter correction diopter fine adjustment dpt focussing system central focus viewing straight monocular weight 82 g special features for spectacle wearers rubber armouring