The 28mm and 35mm are equally impressive as the 24mm in all respects and get a run when the longer focal lengths are required, but I will admit that it’s normally the 24mm that I grab for this type of image.
...as you can see from the linked image, the Olympus is quite the performer and takes it to the Canon quite well, matching detail and sharpness, although it's slightly underdone on contrast. (This is easily fixed in Photoshop however)
Also see: http://russellspixelpix.blogspot.com/2007/11/focus-confirm-adapters-vs-split-screen.html
AustralianLight Landscape Photography: http://www.australianlight.com.au
Update - March 2011: After having another look at today's available adapters, I would suggest that the Fotodiox Pro range is definitely worth considering. As well as the adapter shown here, Amazon also offers budget and AF confirm versions....
Tags: olympus om lens canon eos adapter zuiko lenses canon body dslr slr focus confirm chip alternate lenses