Outdoor binoculars area of use nature outdoor sports magnification 12 x lens diameter 50 mm prism system roof suitable for intermediate beginner expert exit pupil diameter 417 mm min focus distance 4 m angle of view 46 field of view in 1000 m 80 m twilight factor 245 relative brightness 17 36 focussing system central focus viewing straight binocular coating fully multi coated weight 793 g included in delivery pouch special features rub