I recently bought a Canon 10 D
I have hanging around two old Canon lenses.
One is an FD 50mm lens
The other is a Sears zoom.
(Hey don't blame me...they were given to me!)
Can I mount these on the camera with out damaging any thing?
I think that Canon made such and adapter and I believe "off-brand companies
made them as well. HOWEVER you lose infinity focus and automatic aperture.
Call them an "extension tube" so to speak. The lenses could be used for
close-up photography. The adapters really were meant to adapt EOS mounts to
other than lenses .. things like bellows, telescopes, etc.
Canon also made an adapter (and HAMA has one available now) that couples FD
lenses to EOS bodies while NOT losing infinity focus but still losing automatic
lens operation. HOWEVER these adapters were essentially tele-extenders and you
lost one stop of lens speed and gained 1.25X in focal length. They really did
not work well with lenses set to large apertures.
I made one of the former by coupling a FD body flange with and EOS rear lens
cap. It works. I bought one of the latter and it works too. Poor to mediocre
results at large apertures but passable at smaller ones.
You can read about my improvisation at:
http://www.rit.edu/~andpph/text-eos-to-fd-adapter.html
cheerio,
andy
