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auto focus keeps jumping around

Discussion in 'Panasonic Cameras' started by wzfoto, Jan 3, 2013.

  1. wzfoto

    wzfoto Mu-43 Regular

    Jul 8, 2012
    When recording videos on a gf3 w 20 1.7, I notice that any slight movement on the scene will cause the camera to refocus. Is there a way to keep the focus fixed on a spot or reduce the sensitivity of refocusing?
  2. greenlight

    greenlight Mu-43 Regular

    Nov 16, 2012
    Colin B
    On the GX1 you can turn off continuous AF in the video menu. Once you've done that, focussing only occurs when you half press and hold the shutter button (box goes green to confirm focus). Not quite what you were asking for but at least it puts you in control of when the camera refocuses. I'm guessing the GF3 may have the same option, give it a try.
  3. speedandstyle

    speedandstyle Mu-43 Hall of Famer

    Auto focus is a issue that all video shooters have to deal with. All camcorders, even $10k ones have AF hunting problems under certain situations. To avoid this issue professionals shoot manual focus. In fact on a big crew there is a guy who does nothing but that{called a focus puller}. The piece of equipment used is called a follow focus.

    There are some ways to deal with this issue. First is to shoot in manual focus. If the action is going on at about the same distance from the camera and it is not moving then manual works great. Stopping the lens down will give a deeper DOF and even if you still have AF on it shouldn't hunt as bad. Your GF3 will allow touch focusing using the screen. This is the next best thing to a follow focus but should be far easier to master and cheaper.
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