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The Fieldscope ED 50 Grey. This is potentially what serious travelling birdwatchers have been waiting for as this lightweight travelling scope is ED quality and fully waterproof. Close focus to 3m, length 209mm (50) 207mm (50A). Remarkably compact and lightweight, these Fieldscopes provide superior waterproof reliability (tested to a depth of 1 metre for 5 minutes). They are fully compatible with nine conventional Nikon Fieldscope eyepieces,although the old 20x is not recommended due to vignetting. Eyepiece adjustment: 24x becomes a 16x, 30x becomes a 20x, 40x becomes a 27x and 20-60x becomes a 13-40x.The Nikon ED50 is supplied with a case.