Outdoor binoculars area of use hunting watersports nature travel outdoor sports magnification 8 x lens diameter 42 mm prism system porro suitable for intermediate beginner expert exit pupil diameter 53 mm min focus distance 5 m angle of view 8 field of view in 1000 m 140 m twilight factor 183 focussing system central focus viewing straight binocular coating multi coated weight 755 g eye relief 12 colour black special features rubber