Looking to upgrade to something a bit more flexible than the 35mm f1.8, and wondered if anyone is using this set up. Undecided between this and the Tamron 17-50 non-VC. Had a play with the 17-55 on a D3100 in Jacobs - wasn't bothered about the weight but such a large lens on a small body did look a little odd. Any comments/thoughts appreciated.