Lumix G9: Any solution to video CAF problems?

Started 10 months ago | Questions thread
NorCal Jim
NorCal Jim Regular Member • Posts: 418
Re: Lumix G9: Any solution to video CAF problems?

Kawika Nui wrote:

Kawika Nui wrote:

Recently got a G9 and have been playing with it to get used to it and see how it performs.

I was surprised and disappointed to find major deficiencies with the video CAF (shooting mp4, 1080/60p). In a very simple shooting environment, the camera kept defocusing and refocusing for no reason. There is almost no movement toward or away from the camera, and the distance is close to infinity anyway. The video starts in focus, then arbitrarily moves out of focus and back a couple of times - all in a very short time.

Does anyone have a suggestion for fixing this?

I seem to have solved the problem.

Set AF lever to AFS (Single).

Set Video AF to Continuous AF Off

Set Eye Sensor AF to On.

I'm an EVF shooter, so this works perfectly. Ended the problem.

I just started reading this thread and had to smile when I reached this post since I have similar good results using AF-S with my Olympus cameras. I enjoy the lightning fast AF-S and have avoided the AF-C. I have also run across the occasional YouTube video with hints on how to maximize AF in video. I still need to do some additional testing with my EM5ii & Pen-F but am encouraged with what I am seeing so far when making short topical video clips when I am in front of the camera.

Previously, I had great results from my Sony a5100 when I am in front of the camera for short videos (never loses focus). Of course, I need to keep it short so it won't overheat.

I am very interested in the Sony a6400 which significantly raises the AF bar and has some crazy sticky eye AF and focus tracking with no overheating issues. I have continued to depend on Sony for video but would love to consolidate my camera resources in MFT. I much prefer the handling of my Olympus cameras to Sony and only use Sony these days for video.


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Sony RX100 V Sony Cyber-shot DSC-HX99 Sony a5100 Olympus E-M5 II Olympus PEN-F +14 more
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