Panasonic Lumix DC-GX9 Operating Instructions Manual page 122

[4K Pre-Burst]
• Burst pictures are saved as a single 4K burst file in the MP4 format.
• When [Auto Review] is enabled, the picture selection screen will be displayed
automatically. To continue recording, press the shutter button halfway to display
the recording screen.
• For information on how to select and save pictures from 4K burst files, refer to
(→124).
122
Recording with the 4K Photo function and selecting pictures to save
Press the shutter button fully
• The camera adjusts the focus continuously when using Auto Focus.
Except when in Manual Exposure Mode, it also adjusts the exposure
continuously.
• Images may not be displayed as smoothly as when recording with the
normal recording screen.
Approximately 1 second
Recording is performed
In situations where you want to lock focus and exposure, such as
when the subject is not at the centre, use [AF/AE LOCK].
4K Photo and Drive Settings
(→111)