Panasonic LUMIX DC-GH6 Owner's Manual page 281

Metering / Exposure / ISO Sensitivity – Manual Exposure Mode
2
Set the aperture value and shutter speed.
≥Rotate
speed (B).
30 30 30
(B)
3
Start recording.
•
If the correct exposure is not achieved when the shutter button is pressed
halfway, the aperture value and the shutter speed blink red.
to set the aperture value (A), and
5.6
F
(A)
281
to set the shutter