Lens Compatibility

[dreamthrum]

I have had a Canon Rebel for years now and am looking at picking up a 20d and was wondering if I would be able to use those lens or if I would need to get new lens.

Thanks,

Jeremy

[aam1234]

You can use them, no problem.

[dreamthrum]

Thanks for the quick response!

[felix21685]

just curious which lenses you have dreamthrum?

[Duder]

EF lenses will fit all Canon EOS cameras.

[wilflee]

Just be aware that if you buy a EF-S lens for the 20D, it won't fit your Rebel.

[robertwgross]

The correct answer is: maybe yes, maybe no.

If it is a good standard Canon EF lens, then it is compatible.

If you have one of the other brands of EF-compatible lenses, then the answer is maybe. Some of the older non-Canon lenses will not work reliably with the new digital body. However, I know that Sigma and other brands have been sent back to the factory for a chip change on the lens's firmware, and that brings them up on compatibility. There are a few of the oldest non-Canon lenses that cannot be upgraded for firmware, however. A friend of mine got stuck with one of those oldest lenses, so it will not work on my 20D.

---Bob Gross---

[dreamthrum]

I have :

Promaster Specturm7 35-80mm
Sigma Zoom 70-210mm

[dreamthrum]

I will be going by Wolf Camera today and taking my lenses there to try them out and see for sure. I'm really not concerned about my 35-80mm working as it isn't the greatest lens, but I'm quite fond of the 70-210.

[Andy_T]

Dreamthrum,

as Bob gross mentioned, it might be possible that your Sigma lens needs re-chipping.

In that case, ask Sigma directly ... in general, camera shop people are neither known for their knowledgeability nor for their always putting the customer's interests above their own :rolleyes:

The forum here is the better choice, most likely.

Best regards,
Andy

[Wildman]

Just be aware that if you buy a EF-S lens for the 20D, it won't fit your Rebel.
Both Digital Rebels and the 20D can use EF-S lenses (the only cameras so far compatible with them).

[Jon, The Elder]

Wildman is correct.

[robertwgross]

Both Digital Rebels and the 20D can use EF-S lenses (the only cameras so far compatible with them).

There is a terminology problem that we get into. We need to speak of the film Rebel as a film Rebel, and not as just a Rebel, since the EF-S lens does not fit any EOS film camera.

---Bob Gross---

[Jon, The Elder]

Good point Bob - forget that a lot of folks are trying to take their exisiting lenses into the digital realm.