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FA* 300mm f4.5 jittery focus problem?

Started Sep 30, 2013 | Questions thread
DAVID MANZE Veteran Member • Posts: 6,390
Re: FA* 300mm f4.5 jittery focus problem?

Hi Walter,

I have this lens and have had the similar problem, cleaning the contacts helped enormously, check the plating on the contacts for wear first, it could also be caused by the plated springs or dirt inside between the contacts. One things for sure, a poor contact can cause jittering.

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