OS or not?

slartibartfast · 01-13-2012, 02:54 PM

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

JinDesu · 01-13-2012, 03:02 PM

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.

Adam · 01-13-2012, 04:00 PM

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.

01-13-2012, 02:54 PM	#1
slartibartfast Senior Member Join Date: Jan 2012 Location: Hjørungavåg, Norway Posts: 130	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, 04:00 PM	#3
Adam Administrator Site Webmaster Join Date: Sep 2006 Location: Arizona Photos: Gallery \| Albums Posts: 51,595	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. Adam PentaxForums.com Webmaster (Site Usage Guide \| Site Help \| My Photography) PentaxForums.com server and development costs are user-supported. You can help cover these costs by donating or purchasing one of our Pentax eBooks. Or, buy your photo gear from our affiliates, Adorama, B&H Photo, KEH, or Topaz Labs, and get FREE Marketplace access - click here to see how! Trusted Pentax retailers:

01-13-2012, 03:02 PM	#2
JinDesu Veteran Member Join Date: Jun 2011 Location: New York City Photos: Gallery Posts: 5,638	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.