Sigma 17-70 OS - Corners & AF?

Started Apr 13, 2010 | Discussions thread
Veteran MemberPosts: 3,903Gear list
In reply to Lawrencew, Jun 5, 2011

I did some side by side testing of the Sigma 17-70 v Canon 17-85 (still works above 24mm) v Canon 50mm (as a reference), and I was really disappointed how soft the sigma was in comparison, especially at the wider apertures (where it is supposed to be good).

Now returned to Amazon.
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