Sigma 17-70 f/2.8-4 DC Macro OS HSM Question

Started Jun 13, 2014 | Discussions thread
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rpps Senior Member • Posts: 1,554
Sigma 17-70 f/2.8-4 DC Macro OS HSM Question

I bought a second hand Sigma 17-70 f/2.8-4 DC Macro OS HSM  and I think it's faulty. I can't get a sharp photo at apertures below f8 and when I shake the lens I hear something like a loose internal focus element inside rattling.

If someone else has this lens do you hear anything lose if you lightly shake the lens and at f4 are your photos sharp?

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