This lens is much maligned, but I find it to be a good general-purpose lens for when I don't want to carry a bunch of narrower zooms. Posting a few shots taken with this lens.
First, a few images shot with a 300D:
20mm, ISO 3200, 1/100 sec. f/7.1
26mm, ISO 3200, 1/25 sec. f/4.5
Now a few shot with an XTi:
17mm, ISO 100, 1.6 sec. f/4.0
85mm, ISO 400, 1/10 sec. f/5.6
17mm, ISO 400, 1/400 sec. f/14
28mm, ISO 400, 1/80 sec. f/7.1
17mm, ISO 1600, 1/1000 sec. f/20
17mm, ISO 100, 1/200 sec. f/9.0
85mm, ISO 1600, 1/60 sec. f/5.6
53mm, ISO 200, 1/100 sec. f/5.6