If you replace your kit lens with the 17-40, you might be a little disappointed. The L is actually has a little less contrast and less resolution. It was really designed to be used on full frame, where it blows the kit lens away.


I think you will really enjoy ultra-wide angle, so I recommend getting that Tokina 11-16.


If you would rather replace the kit lens, I suggest the Tamron 17-50 f/2.8 or Sigma 18-50 f/2.8 more than the 17-40.