FujiFilm X-T20 User Manual
Page 290
270
P
eripherals and Optional A
c
c
essories
10
External Flash Units
Setting
Setting
Description
Description
K
Master
Assign the master fl ash to group A (Gr A), B (Gr B), or 
C (Gr C). If OFF is selected, output from the master 
fl ash will be held to a level that does not aff ect the 
fi nal picture. Available only if the unit is mount-
ed on the camera hot shoe as a master fl ash for 
FUJIFILM optical wireless remote fl ash control in 
TTL, TTL%, or M mode.
K
Number of 
fl ashes
Choose the number of times the fl ash fi res each 
time the shutter is released in MULTI mode.
L
Channel
Choose the channel used by the master fl ash 
for communication with the remote fl ash units. 
Separate channels can be used for diff erent fl ash 
systems or to prevent interference when multiple 
systems are operating in close proximity.
L
Frequency
Choose the frequency at which the fl ash fi res in 
MULTI mode.