Universal binocular area of use travel nature outdoor sports theatre hunting magnification 8 x lens diameter 32 mm prism system schmidt pechan suitable for expert beginner intermediate exit pupil diameter 4 mm angle of view 78 field of view in 1000 m 135 m twilight factor 16 relative brightness 16 diopter correction 3 0 dpt focussing system central focus viewing straight binocular weight 510 g colour green operating temperature 15