Tamron 17-50 F 2.8 VC or Nikon 17-55mm 2.8G ED-IF AF-S DX
Price isnt really an issue. the Nikkor is pretty dated, the Tamron is pretty new. I've heard mixed reviews on the Tamron. I need fast auto-focus especially in low light. Any input?
I'd def go for the tamron, because of the price. And i somewhat disagree with the crappy build quality thing. It find it pretty solid and heavy and well built. I've used it at a couple of concerts and it works fine. Never had much problems focusing.