Sigma EX 70-200mm 2.8 mk1 for theatre photography

Started 5 months ago | Discussions thread
Zoltan Rab
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Re: Sigma EX 70-200mm 2.8 mk1 for theatre photography
In reply to Zoltan Rab, 5 months ago

I know that it's price/quality ratio that's hard to beat.

What about the AF speed? How does it compare to the USM of the Canon 70-200 series?

Furthermore, what's your experience with Sigma quality control regarding the 70-200mm 2.8 mk1? And back/frontfocus problems?

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