Outdoor binoculars hunting binoculars area of use hunting nature outdoor sports magnification 7 x lens diameter 50 mm prism system porro exit pupil diameter 71 mm min focus distance 9 m angle of view 67 field of view in 1000 m 117 m twilight factor 187 relative brightness 50 98 focussing system central focus viewing straight binocular coating multi coated weight 980 g eye relief 20 special features rubber armouring outdoor function wat