Will Canon EOS film-camera EF lenses work on a Canon 40D APS-C DSLR?
Asked 10/22/2012
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I have two lenses from a Canon EOS Rebel XS film camera: a Canon EF 28-80mm f/4-5.6 II and a Sigma 100-300mm f/4.5-6.7. I'm considering a Canon EOS 40D and want to know if these lenses will work on it. If they do, will the APS-C sensor change how they behave compared with 35mm film?
Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0
Photography Stack Exchange contributor
13y ago
2 Answers
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Yes, those lenses will be compatible. The EOS Rebel uses the same EF mount lenses as the EOS digital SLRs. They might not perform as well as more recent designs (focus will be slower, and the lenses will be more prone to flare than ones coated for use on digital cameras), but they will work just fine.
Originally by user2719. Source · Licensed CC BY-SA 4.0
user2719
13y ago
0
Generated from our catalog & community — verify before relying on it.
Yes. The Canon EF 28-80mm will mount and work on the Canon 40D, since Canon EOS film cameras and Canon EOS DSLRs use the EF mount.
The Sigma lens may also work, but some older third-party Sigma EF lenses can have electronic compatibility issues on newer Canon bodies. If it works, autofocus and metering should function normally; if not, the issue is usually the lens electronics rather than the mount.
Because the 40D has a smaller APS-C sensor, the field of view will be narrower than on 35mm film by about 1.6×. So:
- 28-80mm gives a field of view similar to about 45-128mm on film
- 100-300mm gives a field of view similar to about 160-480mm on film
So the main downside is losing wide-angle coverage. Also, older lenses may not perform as well as newer digital-era designs, especially for flare resistance and autofocus speed, but they can still be used.
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