02Pilot
Malcontent
I haven't used the Canon (though I'd love to pick one up at some point), but my experience with the Elmar 90/4 has been almost universally positive. Granted, I always shoot with a hood and I've made sure the glass is spotless, but I haven't found it to have particularly low contrast. The look is a bit old-fashioned, but that's to be expected I suppose, and I quite like it. The size and weight make it a perfect travel lens, but I understand the Canon is similar.
Just a quick sample:
Just a quick sample:
