Sigma 70-200 AF fails on 7D

Started Dec 1, 2009 | Discussions thread
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Gebb
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Sigma 70-200 AF fails on 7D
Dec 1, 2009

I have the 7D and the Sigma EX 70-200mm 2.8 APO DG HSM Macro (previous generation, bought 2006).

Happy with the camera (upgrading from the 400D), but this lens will not autofocus with the 7D - though it will autofocus if I put the 1.4 extender between it & the camera.

It is now at the repair shop. First I was told it needed new firmware, now they tell me it needs new electronics...
And it seems Sigma does not have this ready yet...

Anyone experienced the same problem? Any solutions?

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