Outdoor binoculars underwater binoculars compact binoculars area of use nature hunting travel outdoor sports magnification 105 x lens diameter 28 mm prism system roof exit pupil diameter 27 mm min focus distance 2 m angle of view 52 field of view in 1000 m 88 m twilight factor 171 relative brightness 7 10 focussing system central focus viewing straight binocular weight 360 g included in delivery pouch shoulder strap eyepiece caps special