Compact binoculars area of use travel nature outdoor sports theatre magnification 8 x lens diameter 42 mm prism system roof exit pupil diameter 525 mm angle of view 72 field of view in 1000 m 125 m twilight factor 183 relative brightness 27 56 focussing system central focus viewing straight binocular weight 690 g colour black operating temperature 15 60c included in delivery pouch cleaning cloth lens caps shoulder strap special feat