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12-25-2012, 09:00 AM   #1
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K10d multiple lens adjustment?

I recently got a tokina atx pro 80-200 that was backfocusing really bad. I turned debug mode on and to get it to focus properly it is adjusted to +220um. This seems a little excessive to me, but it is what it is. The question is, I know that pentax says they can calibrate for up to 5 lenses on the k10d, but is there a hack that allows us to adjust to the 5 lenses instead of just the whole camera?

12-25-2012, 10:35 AM   #2
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Don't think you can do that on the K10D unfortunately, I believe they added the feature when the K-7 came out.

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12-25-2012, 11:25 AM   #3
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The guy selling one of those in the marketplace said he had to set the AF to +10 or something. What is it about that lens? I don't really understand why particular lenses would always be off but others would be on -- does a certain type of APO glass just fool the PDAF system or what? Or is it the type of sensor in the AF system? (The K5-II uses a new sensor, doesn't it?)
12-25-2012, 05:08 PM   #4
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not sure why but this one is +220um which is a long way back... This was done quickly via trial and error aiming at a snowflake ornament on a tree until I was happy, but will set up the scale chart with the tripod tomorrow when I'm home. It made the rest of my screw drive lenses focus much better which was good so maybe the AF is just going in my body. Hunting for a used K5 at the moment to upgrade but was really frustrated when this lens inparticular was really bad and the HSM lenses that I have in 2.8 were fine

12-26-2012, 09:00 AM   #5
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The debug menu on the K10 will only let you adjust for one lens. You will have to put the setting back to use your other lens.
12-26-2012, 12:42 PM   #6
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That's what I figured but there weren't a whole lot of recent threads discussing it and figured someone may have figured it out. Off to go find a K-5 now...

Thanks guys
12-30-2012, 05:30 PM - 1 Like   #7
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Actually, the K20D added this feature. Which is why I sold my K10D and upgraded.
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