The 1 Nikkor 18.5mm f/1.8 is easily my favorite lens I've used in Nikon's CX format. Even with the little 1" sensor it can still manage to deliver some subject isolation via background blur when shot wide open. (The crop factor of the CX format makes the 18.5mm focal length the rough equivalent of 50mm on a full frame camera, so this is the "Nifty Fifty" of the Nikon 1 line.)
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