The Canon TCs aren't compatible, of course, so I need to choose among the third-party units. I noticed some of them say that they're for lenses that are 90mm or greater, what happens if I use one of those (on a 350d) with the 85mm?
The Kenko Pro 300 3x is tempting, but I'd rather avoid attention-grabbing white.
Thanks, I know that technically I'll lose some quality. I was wondering why they say "90mm or greater"? If it's a vignetting issue, would it still matter on a 1.6 crop like the 350d?
I think that for the quality you will receive with a 3X TC, you might be better off buying a cheap 70-300 zoom. The price and quality will be about the same.