I've just been looking at the new Canon EF-S 10-18mm F4.5-5.6 IS STM lens on my 100D.
I'm used to using all of Canon's wide EF lenses on my 1Ds3 but wanted something for my backup camera that was capable of reasonable quality - I did think of the 10-22, but the 10-18 is actually rather nice to use.
Hope it's of interest
http://www.northlight-images.co.uk/reviews/lenses/canon_efs10-18.html
