Upload & Sell: Off
Now bring on the inevitable bashing...
I like this lens- a lot. I'm keeping my eye on crop camera and lens developments, and this lens, along with Sigma's other APS-C zooms, is very interesting.
My primary interest in this lens is that it provides incredible sharpness at every focal length it touches, thus replacing essentially every prime in that range on a crop system.
Other than the limiting focal range, I don't see a downside to this lens- even the price is pretty incredible. The real question I have about it is not how well it performs on crop cameras compared to other lenses in it's range on the same cameras, but rather how well it compares to a standard F/2.8 zoom on an FF camera- that is, compared to Canon's 24-70/2.8L II, or Tamron's 24-70/2.8 VC, across the focal length range, at different focal distances, in different situations, across the frame, etc.