Tasco offshore 7x50 water os10
Marine binoculars area of use bird watching watersports magnification 7 x lens diameter 50 mm prism system porro exit pupil diameter 714 mm angle of view 68 field of view in 1000 m 119 m twilight factor 187 relative brightness 50 98 focussing system fixed focus viewing straight binocular weight 760 g special features rubber armouring outdoor function waterproof
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