Test Flash And Modeling Flash From A Slave Unit - Canon Speedlite 600EX-RT Mode D'emploi

When the flash mode of the firing group is set to <a> or </>,
exposure is controlled to obtain a standard exposure for the main subject as
a single group. If you shoot with multiple firing groups pointing toward the
main subject, overexposure may result.
The firing groups to be fired do not need to be consecutive; for example, A,
C, E can be set.

Test Flash and Modeling Flash from a Slave Unit

In radio transmission wireless shooting, you can fire the test flash and
modeling flash from a 600EX-RT set as a slave unit.
Modeling flash is not possible from a slave unit with cameras released up
to 2011 or EOS REBEL T5/EOS 1200D.
For the precautions related to modeling flash, see page 38.
When two or more units are set to master, the master unit with the <D>
lamp lit in green is the one that fires.
Test Flash and Modeling Flash from a Slave Unit
Take the picture.
5
Each slave unit fires in the respective
flash modes set.
Display <N>.
1
Press the slave unit's function button
4 to display <N>.
<>> and <Z> are
displayed.
Fire the flash.
2
Test flash
Press the slave unit's function button
3 <Z>.
Modeling flash (p.38)
Press the slave unit's function button
2 <>>.
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