FujiFilm X-T20 - Manual (Page 245)

225
T
he S
etup M
enus
8
BUTTON/DIAL SETTING
N
Function button assignment options can also be ac-
cessed by holding the DISP/BACK button. The selector can
not be assigned more than one role at a time.
AF-ON
If AF-ON is selected, you can press the control in-
stead of keeping the shutter button pressed halfway.
MODELING FLASH
If MODELING FLASH is selected when a compatible
shoe-mounted fl ash unit is attached, you can press
the control to test-fi re the fl ash and check for shad-
ows and the like (modeling fl ash).
TTL-LOCK
If TTL-LOCK is selected, you can press the control to
lock fl ash output according to the option selected for
F FLASH SETTING > TTL-LOCK MODE (
P
166).