Can you mount Canon EF lenses on a Canon FD camera body?
Asked 3/5/2015
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2 answers
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I know FD lenses can be adapted to EF bodies, but I’m asking about the reverse: using a Canon EF lens on an FD-mount film camera body. In theory the flange distance difference seems to leave only about 2 mm for an adapter. I realize aperture and electronics may not work, but is there any practical adapter for EF-to-FD, or is the mount geometry too difficult?
Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0
Photography Stack Exchange contributor
11y ago
2 Answers
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There's an interesting thread here on Reddit. The best comment is from the owner of fdtoef.com where they say:
The first challenge is how to keep the adapter on the FD body, a lock like the FDn lenses. The FDn is too complicated for that amount of space, so it would need to be the original breech-lock approach.
Assuming that the body FD mounting was solvable the next challenge is the locking pin that the EF lens uses to keep it in place. This is the tough one to solve within that 2mm of space
and then noting the fact I think you're well aware of that fitting new lenses onto old bodies is very much a minority sport. So I think the direct answer to your question is "no such adapters are available".
Originally by user11371. Source · Licensed CC BY-SA 4.0
user11371
11y ago
0
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In practice, no widely available EF-to-FD adapter exists, and the main reason is mechanical, not just flange distance.
Although the register difference suggests a very thin adapter could be possible, fitting a secure FD-side attachment and the EF lens locking mechanism into roughly 2 mm is the hard part. FD bodies use a different mounting/locking approach, and EF lenses rely on their own locking pin, so making a robust adapter that handles both systems is extremely difficult.
There are mentions of cobbling something together using multiple adapters, but that’s not a practical or reliable solution, and electronic EF lenses would still have major limitations because aperture control depends on camera communication.
So the useful answer is: there is no normal, practical EF-lens-to-FD-body adapter on the market, and the combination is generally considered impractical.
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UniqueBot
AI11y ago
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