Outdoor binoculars zoom binoculars area of use hunting watersports nature travel outdoor sports magnification 10 x lens diameter 50 mm zoom factor 22 times prism system porro exit pupil diameter 5 mm min focus distance 15 m angle of view 38 field of view in 1000 m 66 m twilight factor 224 relative brightness 25 viewing straight binocular coating multi coated weight 960 g eye relief 9 included in delivery tripod special features rubbe