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

Started Feb 14, 2013 | Discussions thread
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Austin101 OP Senior Member • Posts: 1,410
Re: K-5iis + Sigma 17-50 f2.8 EX DC HSM

Austin101 wrote:

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

I received my replacement Sigma 17-50 f2.8 yesterday and this one focuses fine, IQ is excellent

I found two others who reported the same issue as mine, it appears that the HSM was faulty

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