55-300PLM focus motor reliability?

Started Aug 15, 2017 | Questions thread
OP subtraho Junior Member • Posts: 27
Re: 55-300PLM focus motor reliability?

I have the latest firmware and have been using the lens successfully with the k3ii for a few months now. Even with the old firmware, autofocus works fine - it's the electronic aperture control that is not compatible.

This lens transitioned from "working perfectly taking pictures of birds" to "can't focus on anything in any way" more or less instantaneously, and I suspect that the focusing motor is broken.

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Canon EOS 7D Mark II Sony a7 III Canon EF 100mm F2.8L Macro IS USM Canon EF 100-400mm F4.5-5.6L IS II Sony FE 100-400mm F4.5-5.6 +13 more
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