Canon Speedlite 430EX III-RT - Manual (Page 65)

65
Test Flash and Modeling Flash with a Slave Unit
In radio transmission wireless shooting, you can fire the test flash and
modeling flash (p.36) from a 430EX III-RT set as a slave unit.
Select < N > or < M >.
Press < 8 > of the slave unit.
Turn < 9 > to select < N > or
< M >, then press < 8 >.
X A flash signal is sent from the slave unit
to the master unit, and a wireless system
test flash or modeling flash is fired.
Test Flash and Modeling Flash with a Slave Unit
While the flash mode can be set to < / > auto external flash metering
when 430EX III-RT is set as a master unit, this function is effective when
using a slave unit that supports <
/ > (example: 600EX-RT).
430EX III-RT does not support < / >. As a result, when the flash
mode of the master unit is set to < / >, 430EX III-RT units set as the
slaves do not fire. When using 430EX III-RT as a slave and setting the
flash mode with the master, do not set the flash mode to <
/ >.
When 430EX III-RT is set as the master unit and the flash mode of firing
group “A” is set to <
/ >, master flash firing is not performed even if
430EX III-RT is set to “Master flash firing: ON” (p.53).
When the flash mode is set to < a > or < / >, exposure is
controlled as a single group to obtain the standard exposure for the main
subject. If you shoot with multiple firing groups pointing toward the main
subject, overexposure may result.
For < / >, refer to the instruction manual of a Speedlite compatible
with auto external flash metering.
When you do not want a certain group to fire, select < E > when
setting the flash mode in step 3.
The order of firing among firing groups does not need to be consecutive;
for example, A, C, E can be set.
You can set the flash output or flash exposure compensation amount by
simply pressing <
8 >, selecting the firing group using the < S > cross
keys, and turning < 9 > (P.Fn-08/p.88).