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12-27-2009, 05:29 PM   #1
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K20D AF Adjustment

There are two adjustments - apply to all and apply to one.

I understand the difference.

Each has a scale of 10.

Simple question:

Does that mean I have a scale of 10 only, or a possible scale of 20?

For example: Apply 5+ to all. Apply 10+ to one (pick one). Does this equal 10 or 15?


12-28-2009, 05:58 AM   #2
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I have been playing with my K20D uisng a Sigma 17-70 Macro lens.

Printed off the AF Test Chart and tried it out and it seems the lens BF a little, well actually quite a lot. :O

I adjusted the AF to +7, which seems quite high! Has anyone else adjusted for lens BF and if so, how much adjustment was made?
12-28-2009, 06:03 AM   #3
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the idea is to adjust and then make the test again and then repeat the process until it's spot on.
12-28-2009, 07:54 AM   #4
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The answer

Seems that if both the Apply to One and Apply to All have values, the Apply to One values supersede and govern. So they are clearly not additive, they are mutually exclusive with the Apply to One value being given effect if present.



12-28-2009, 11:19 AM   #5
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Yeah sadlt apply all will over write individual lenses.

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