Appreciate on-going discussion on the shorter zooms in an earlier thread. Bought the Tokina 11-16 and plan to get a Canon (maybe new Sigma) 70-200 f2.8. But would like to hear from folks here about the MID range zoom to bridge the above 2 focal lengths.
Tokina also offers a 16-50 f2.8 but its NOT IS which I would prefer, nor does it have the weather-sealing of the Canon's in this range.
Canon 17-55 takes care of both these issues, tho you pay for it...