I am doing a "field test" in Turkey. I have the both the 22/2.0 and the 18-55mm zoom, along with 90/4.0 Elma and 35/2.0 Summicron. I found out that the 18mm end of the 18-55 zoom seems to be quite a bit narrower than the 17mm end of my 17-40mm with my old 40D. Now I realize that I need something wider in the future. my shooting is mainly scenery with "shot and run" attitude. Another thing that I have noticed is that the 22/2.0 is obviously sharper than the zoom. I am flipping between the 12/2.0 and the 11-22mm zoom. Please give me your expert opinion, especially from the owner of both lenses. Thanks for the advice in advance.