I posted this at my site last night. For those interested, there is a center crop test, left edge test, and also some bokeh shots. Hopefully I can post some more images in the coming days. Feel free to comment at my site too:
http://www.pbase.com/fstopjojo/30extest![]()

Opening up the centre crop sample images to 'original size' it's clear the 30mm is a top notch performer in comparision to both, but the Canon seems to hold up at f5.6, though I'm looking on my laptop screen which isn't always the best idea.
(private joke)

