
7 hours ago
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Re: Sigma EX 70-200mm 2.8 mk1 for theatre photography
In reply to Zoltan Rab,
5 months ago
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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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