Sigma 17-70 f/2.8-4 - OS version vs non-OS version

Started Mar 2, 2012 | Discussions thread
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cutie07 Regular Member • Posts: 267
Re: Sigma 17-70 f/2.8-4 - OS version vs non-OS version

OS at this range is not so important, I agree.

But, if you are manual focussing and use the focus magnifier at 70mm (zoom into the frame and multiply the focal lenght) you will be glad to have a stabilized viewfinder...

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