Panasonic Lumix DMC-G7 body - Manual (Page 391)

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13. Others
• This phenomenon occurs when the camera is trying to record with highly accurate focus at a
reduced Auto Focus speed, and is not a malfunction.
• This is characteristic of MOS sensors which serve as the camera’s pickup sensors.
This is not a malfunction.
When a subject moves across the image very fast, the subject may appear slightly distorted.
• When noticeable flicker or striping is seen under lighting such as a fluorescent or LED lighting
fixture, you can reduce the flicker or striping by setting up [Flkr Decrease]
(P255) and fixing the
shutter speed. It is possible to select a shutter speed from [1/50], [1/60], [1/100], or [1/120].
You can set the shutter speed manually in the Creative Video Mode.
(P126)
• With recording in a quiet environment, depending on the lenses used, the sound of aperture
and focus actions may be recorded in motion pictures.
Focus operation can be set to [OFF] in [Continuous AF]
(P248) .
• Use of [Silent Operation] is recommended if you are concerned about operational sounds.
(P127)
• While recording motion pictures, plugging the aperture of the microphone with a finger may
reduce the level of audio recording or audio may not record at all. Also be careful because the
operation sound of lenses can easily be recorded at this time.
Since motion picture recording stops only after you press the motion picture button, the
sound of the operation may be noticeable. If the sound bothers you, try the following:
> Divide the last part of the motion picture using [Video Divide] (P279) in the [Playback]
menu.
The motion picture may not be divided near the very end of it. To avoid this, record
approximately 3 seconds longer.
> Set the camera to Creative Video Mode, and use a shutter remote control (optional) to
record motion pictures. (P363)
Sometimes it is difficult to focus with Auto Focus when recording 4K motion
pictures.
Striping or flicker appears under lighting such as a fluorescent or LED lighting
fixture.
The subject appears distorted.
In motion pictures, abnormal clicking and buzzing sounds are recorded.
The recorded sound is very quiet.
An operation sound is recorded at the end of a motion picture.