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03-05-2011, 01:35 PM   #1
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Join Date: May 2010
Posts: 5
Dead AF With K5 and FA Lenses


I'm a newbie to a large extent so forgive me in advance if I don't word my problem with precision.

In a nutshell, my K5 suddenly only recognizes my FA 28-70 and FA 80-200 MM lenses in MF mode. The zooming (including power zooming) works fine. The apeture ring is set to A and I've attempted to clean the connection points, at least those that I can see.

My troubleshooting so far as led me to believe that it is a connection issue because my DA 55-300mm lens works just fine.


03-08-2011, 03:51 PM   #2
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Join Date: Jan 2008
Location: Southern California, USA
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Posts: 729
Are you talking about the FA*28-70 and FA*80-200mm?
If yes, I suggest you to try to push the black front grip (between the hood & distance scale window) AWAY from you until you see the word AUTO FOCUS.
This is a unique method that is specific to these lenses.

Look at this review for better understanding of what I'm talking about:
Fast Sports Zoom Lenses for Pentax | Sigma 70-200mm vs. Tamron 70-200mm vs. Pentax FA* 80-200mm F2.8

I hope this helps solve your problem.

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