K-5iis + Sigma 17-50 f2.8 EX DC HSM

Started Feb 14, 2013 | Discussions thread
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Austin101
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K-5iis + Sigma 17-50 f2.8 EX DC HSM
Feb 14, 2013

I just received a Sigma 17-50 f2.8 EX DC HSM which I tested on my K-5iis however the focusing just seems to hunt and never locks, I tested it in manual focus and the lens seems really sharp.

anyone else seen or heard if there is an issue with this combo or maybe I just got a bad copy

Pentax K-5
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