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Panasonic G7 Camera focus problem with example

Started Dec 7, 2018 | Discussions thread
OP Brisn5757 Veteran Member • Posts: 4,540
Re: Panasonic G7 Camera focus problem with example

Brisn5757 wrote:

I recently posted a problem I had with my Panasonic G7 camera going out of focus when video recording a subject.

This time I'm including an example that I've posted to YouTube

https://youtu.be/PAakOpQ6G_I

Can someone see why the camera has gone out of focus?

Brian

When looking at this video clip frame by frame I noticed that I had zoomed out a bit at the start of this video clip and it did not effect the focus.

For some unknown reason the focus seems to move to a focus that would be used when video recording something close to the camera rather than put the subject slightly out of focus. I'm wondering if the camera sends a constant signal to the lens to keep the camera correctly focused and if it lost this signal then the lens with go to closeup focus. There is also a delay when the camera has lost focus as most of the time the focus is very fast. I'm wondering why it takes so long before it attempts to refocus.

Zooming out slightly should not change the contrast in the center of the screen that is needed for accurate focusing. I can understand if the girl moved forwards and the camera then focused on the background but this is not the case as there is no attempt to focus on the background. I see no reason why the camera should go completely out of focus and not slightly out of focus.

Brian

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