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05-06-2011, 12:01 PM   #1
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KAF3 Mount Question...

Hi, I was wondering if Tokina AT-X AF lenses works 100% on the K-5 body, since it's KAF3 mount. My only doubt is about that AF which I don't know if it stands for Auto Focus or the AF series in this chart:

The Pentax Camera Lens Compatibility Chart

which clearly states that it doesn't work 100%...

Thanks for your time in advance!


Last edited by Thales454; 05-08-2011 at 10:16 PM.
05-06-2011, 02:49 PM   #2
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Yes it does work 100%, and you can think about Tokina AF lenses in Pentax mount as very similar to the Pentax F line of lenses.

The only things which are KAF3 mount are lenses, not bodies, and the K-5 is a KAF2 mount as shown in the chart and listed here on this site.

Regarding the AF in that specific chart, that is referring to the very short-lived early Pentax-AF system, which was really just the SMC Pentax-AF 35-70mm F2.8 lens which had the autofocus sensor, motor, and electronics entirely in the lens, and only worked with the Pentax ME-F body, which dates back to 1981.

Since you can think of Tokina AF lenses for Pentax like Pentax F series lenses, this quote from that site applies: "A, F, FA and D FA lenses work on all Pentax bayonet cameras ever produced (exception: A lenses do not work on the MZ-60/ZX-60)."

Last edited by nater; 05-06-2011 at 03:35 PM.
05-06-2011, 03:39 PM   #3
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QuoteOriginally posted by nater Quote
Yes it does work 100%, and you can think about Tokina AF lenses in Pentax mount as very similar to the Pentax F line of lenses.
"
Thank you very much =DD
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