i use a nikon d50 and got this lens. i don't know the difference between canon and nikon. should be the same. this lens is pretty dam sharp. taken at F4 and it's good enough. colors can be fixed in photoshop.
some pictures taken with it
http://www.flickr.com/photos/r47z/82476508/
http://www.flickr.com/photos/r47z/82478792/
http://www.flickr.com/photos/r47z/82478791/
some pictures taken with it
http://www.flickr.com/photos/r47z/82476508/
http://www.flickr.com/photos/r47z/82478792/
http://www.flickr.com/photos/r47z/82478791/