FujiFilm GFX 50S II Medium Format Mirrorless Camera with 35-70mm Lens Kit - Manual (Page 289)

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P
eripherals and Optional A
c
c
essories
10
External Flash Units
Use optional external fl ash units for fl ash photography.
Some units support high-speed sync (FP) and can be used
at shutter speeds faster than the fl ash sync speed, while
others can function as commanders controlling remote
units via optical wireless fl ash control.
O
You may be unable to test-fi re the fl ash in some circumstances, for ex-
ample when a setup menu is displayed on the camera.
Red-Eye Removal
Red-eye removal is available when an option other than OFF is selected
for F FLASH SETTING > RED EYE REMOVAL and G AF/MF SETTING >
FACE/EYE DETECTION SETTING is FACE DETECTION ON . Red-eye re-
moval minimizes “red-eye” caused when light from the fl ash is refl ected
from the subject’s retinas.