Focus accuracy : Sigma 17-50mm f/2.8 or Canon 17-55mm f/2.8 ?

Started Sep 11, 2012 | Discussions thread
yoms
Junior MemberPosts: 44
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Re: Focus accuracy : Sigma 17-50mm f/2.8 or Canon 17-55mm f/2.8 ?
In reply to tkbslc, Sep 12, 2012

Actually, even with AFMA I do worry... The deviation I had with a Tamron 28-75mm f/2.8 was so huge from shot to shots in identical conditions and settings that I'm a bit scared now...

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