Hunting binoculars area of use watersports travel hunting magnification 10 x lens diameter 50 mm prism system porro exit pupil diameter 5 mm min focus distance 5 m angle of view 68 field of view in 1000 m 119 m twilight factor 224 relative brightness 25 focussing system central focus viewing straight binocular coating bk7 weight 705 g included in delivery shoulder strap pouch lens caps manual special features for spectacle wearers rubbe