Panasonic LUMIX DC-GH6 Owner's Manual page 339

Flash – Recording Using a Wireless Flash
•
The placement range serves as a guide for when recording with the camera held
horizontally. The range differs depending on the surrounding environment.
•
We recommend using a maximum of three wireless flashes in each group.
•
If the subject is too close, communication light may affect the exposure.
You can reduce the effect by setting [Communication Light] to [LOW] or lowering
the output with a diffuser or similar device. (
1
Attach an external flash to the camera. (
Hot Shoe Cover:
2
Set the wireless flashes to [RC] mode and then place
them.
•
Set the channel and group for the wireless flashes.
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[Communication Light]:
Removing the
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