Canon Speedlite 430EX III-RT Instruction Manual - Page 36

Modeling Flash, Press the depth-of-field preview, button on the camera.

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Page 36 highlights

Modeling FlashN When the camera's depth-of-field preview button is pressed, the flash fires continuously for approx. 1 sec. This feature is called "modeling flash". This is effective for checking shadow effects on the subject with the flash light and the lighting balance during wireless flash shooting (p.45, 71). Press the depth-of-field preview button on the camera. X The flash fires continuously for approx. 1 sec. To avoid degrading and damaging the flash head due to overheating, do not fire the modeling flash more than 20 times continuously. After firing it 20 times continuously, allow a rest time for at least 10 min. If the modeling flash is fired more than 20 times continuously, the safety function may activate and restrict flash firing. If this happens, allow a rest time for at least 20 to 30 min. During Live View shooting, firing modeling flash (by operating the camera) is not possible. Modeling flash (by operating the camera) is disabled when using the flash with EOS M3, EOS M2, EOS M, EOS Elan II/Elan II E/50/50E, EOS REBEL 2000/300, EOS REBEL G/500N, EOS REBEL K2/3000V, EOS REBEL XS N/REBEL G II/3000N/66, EOS IX, or EOS IX Lite/IX7. Set C.Fn-02 to 1 or 2 (p.83), and fire modeling flash using the test flash button. During normal flash shooting or when using the flash as the master unit in radio transmission wireless shooting, you can fire the modeling flash with the test flash button (C.Fn-02/p.83). 36

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36
When the camera’s depth-of-field preview button is pressed, the flash
fires continuously for approx. 1 sec. This feature is called “modeling
flash”. This is effective for checking shadow effects on the subject with
the flash light and the lighting balance during wireless flash shooting
(p.45, 71).
Press the depth-of-field preview
button on the camera.
The flash fires continuously for
approx. 1 sec.
Modeling Flash
N
To avoid degrading and damaging the flash head due to overheating, do
not fire the modeling flash more than 20 times continuously. After firing it
20 times continuously, allow a rest time for at least 10 min.
If the modeling flash is fired more than 20 times continuously, the safety
function may activate and restrict flash firing. If this happens, allow a rest
time for at least 20 to 30 min.
During Live View shooting, firing modeling flash (by operating the
camera) is not possible.
Modeling flash (by operating the camera) is disabled when using the
flash with EOS M3, EOS M2, EOS M, EOS Elan II/Elan II E/50/50E, EOS
REBEL 2000/300, EOS REBEL G/500N, EOS REBEL K2/3000V, EOS
REBEL XS N/REBEL G II/3000N/66, EOS IX, or EOS IX Lite/IX7. Set
C.Fn-02 to 1 or 2 (p.83), and fire modeling flash using the test flash
button.
During normal flash shooting or when using the flash as the master unit in
radio transmission wireless shooting, you can fire the modeling flash with
the test flash button (C.Fn-02/p.83).