Modeling Flash - Canon ST-E3-RT-V2 Manual

Modeling Flash

When the camera's depth-of-field preview button is pressed, the flash
fires continuously for 1 sec. This is called the modeling flash. It enables
you to see the shadow effects of the flash on the subject and the lighting
balance.
Modeling Flash from a Sender Unit
Modeling Flash from a Receiver Unit
With EOS digital cameras released since 2012, you can fire the
modeling flash from a flash set as a receiver unit (except with EOS
REBEL T100/4000D/3000D, EOS REBEL T7/1500D/2000D, EOS
REBEL T6/1300D and EOS REBEL T5/1200D). For the operations, see
the flash's instruction manual.
With cameras released up to 2011 or EOS REBEL T100/4000D/3000D,

EOS REBEL T7/1500D/2000D, EOS REBEL T6/1300D and EOS REBEL
T5/1200D, the modeling flash cannot be fired from receiver units.
To avoid degrading and damaging the flash head due to overheating, do

not fire the modeling flash more than 10 times continuously. After firing the
modeling flash 10 times continuously, allow a rest time of at least 10 min.
If the modeling flash is fired more than 10 times continuously, the flash's

safety function may activate and restrict the flash firing. If this happens,
allow a rest time of at least 15 min.
Modeling flash is not possible when using the transmitter with EOS

REBEL 2000/QD or EOS 300/QD.
When two or more units are set to sender, the sender unit with the

<D> lamp lit in green is the one that fires.
You can fire the modeling flash with the test flash button (C.Fn-02/p.58).

Press the depth-of-field preview
button on the camera.
The flash fires continuously for 1 sec.
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