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FA* 300mm f4.5 jittery focus problem?

Started Sep 30, 2013 | Questions thread
Radkon New Member • Posts: 6
Re: FA* 300mm f4.5 jittery focus problem?

My F* 300mm f4.5 behaves the same way on my K5 (which has the same focus system as the K30).  It will snap to approximate focus and then "click clack" back and forth a couple times until it locks.    The K10D did the same thing, just a whole lot slower, so it didn't seem as "jittery."

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