I bought the EF-S 24mm this morning from Jessops for £171.

Its a neat little lens, and fits nicely on my EOS 500D. I haven't had chance to use it much yet, but I took a few sample photos out of the window and it looks nice and sharp, even when wide open. I wasn't sure about the manual focusing (with the ring simply activating the motor, rather than being mechanically coupled to the lens), but it actually seems to work nicely. Also, the new Canon lens cap is good .

Here are some photos of the lens on my camera, and shown in comparison to an EOS 300 with an EF 50mm.

efs24_500d.jpg

24_vs_50.jpg