FujiFilm GFX 50S II Medium Format Mirrorless Camera with 35-70mm Lens Kit - Manual (Page 295)

271
P
eripherals and Optional A
c
c
essories
10
External Flash Units
COMMANDER(OPTICAL)
The options will be displayed if the unit is currently functioning
as a commander for Fujifi lm optical wireless remote fl ash control.
ADJUST END
COMMANDER(OPTICAL)
MODE
Fujifi lm optical wireless remote fl ash control off ers a choice of
four channels (Channels 1 through 4) for the exchange of optical
signals between the commander and remote fl ash units. Sepa-
rate channels can be used for diff erent fl ash systems or to pre-
vent interference when multiple systems are operating in close
proximity.
The fl ash units can also be placed in up to
three groups (A, B, and C) and fl ash mode
and fl ash level adjusted separately for
each group.
B B
A
C