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01-13-2012, 02:54 PM   #1
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slartibartfast's Avatar

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Location: Hjørungavåg, Norway
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OS or not?

There are two types of the Sigma 17-70mm F2,8-4,0 DC Makro HSM one with OS and one without - the one without is obviously quite a bit cheaper

which one would be better on a K-5?
If I understand correctly is the OS more in the way than useful, is that correct?

thanks for your help

01-13-2012, 03:02 PM   #2
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Location: New York City
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Is the one without OS cheaper? If so, just get the non-OS one.

I have the 17-70 2.8-4 with OS, and I leave OS off all the time. I use my tripod a lot for taking pictures of objects in my room, and for landscapes, and I wouldn't remember to always turn off that OS on the lens.
01-13-2012, 04:00 PM   #3
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Yeah, get the non-OS version- Sigma is starting to take the OS out of their Pentax lenses anyway because it's not better than SR at short focal lengths.

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