It would have to go down to at least 18mm but preferably shorter (I like my wide angle stuff) but also have at least the range to get up to 40/50mm....
I have no idea what the sigmas and Tamrons of this world are like so any suggestions are helpful. The last resort is to pay for the canon 17-40L....but that's only if I don't find anything cheaper (but with acceptable optics) before I need to buy it....
So suggest away

.mic













