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07-12-2011, 11:52 AM   #1
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Pentax K-10 and Sigma 17-70mm F2.8-4.5 DC Macro

I am looking for a lens to replace my kit lens on the K-10 and it will probably be the Sigma 17-70mm F2.8-4.5 DC Macro.
in their web site it says that "Pentax mount lenses cannot be used with SF series AF cameras". What does it mean? What are Pentax cameras with SF series AF? Will this lens work with my K-10?

07-12-2011, 12:53 PM   #2
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SF cameras were a line of film cameras made by Pentax in the 80s, read the article in camerapedia about one of them, Pentax SFX (SF1) - Camerapedia

Since your K10d is not a SF series camera, no worries.
07-12-2011, 01:13 PM   #3
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The Sigma 17-70 is a fantastic lens. A little on the heavy side, but is generally on my K5 as a walk-around. Don't think that the DC Macro version is available new any more. I have the 2.8-4 OS HSM version (HSM focusing is awesome; OS is not as good as SR in-camera in my opinion).

Highly recommended!!
07-12-2011, 02:44 PM   #4
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I used this setup. The Sigma 17-70mm and the K10D makes a very good pair. I sold my K10D and now this lens is in my K20D about 50% of the time while the FA 35mm f/2 is the rest of the time. You will not regret getting the Sigma lens to replace the Kit lens.

07-12-2011, 03:33 PM   #5
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I picked one of these up from *bay a couple of months ago and it's on my K-7 most of the time now - great lens. Although it is somewhat heavy, it balances well, and i like the compact size. It will probably feel even better on your K-10. My advice is if it's a reasonable price, just get and enjoy it my friend.

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