Sigma 70-200 2.8 APO on 5D Mark III - no autofocus?

Started Apr 13, 2012 | Discussions thread
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millan Forum Member • Posts: 60
Re: Sigma 70-200 2.8 APO on 5D Mark III - no autofocus?

I had Sigma 105 f/2.8 EX Macro that didn't work with my first DSLR EOS 20D. After re-chipping (it included also some printed circuit board change) it worked fine, but since then I haven't bought any Sigma lens.

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