Can AF module wear out? (K20D)

Started Dec 23, 2012 | Questions thread
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Johan Josefsson Senior Member • Posts: 1,151
Can AF module wear out? (K20D)

Hi guys,

My almost 5 year old K20D used to nail AF for most shots back in the day, if something was out of focus it almost always could be attributed to user error.

But lately I think it has begun to behave erratically, sometimes AF works fine, sometimes it back focus by large amounts with same lens, even though using 1 point AF with contrasty subject in the middle of screen.

It happens more often with some lenses (DA35Ltd), but I have seen it with other as well.

So, I am just curious, can AF module "wear out"?

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