Master unit s flash on/off – Canon 580EX User Manual
Page 38
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Q 9 The Speedlite’s zoom settfhg vwll be sei automatically to 24mm, (t is possible to change
the master units room setting. However, note that the master unit transmits wireless
Signals to the slave unît{s) with the prellash. Therefofa, the flash coverage must cover the
slave unit's position. If you change the master unit's zoom setting, be sure to test the
Wireless operation before shooting.
• If the slave unit enters auto power off, it can be turned on again by pressing the nbasler
unit's lest firing button.
♦ A test flash cannot be fired while the camera's operation titmer Ô4 or ô6 is active.
Master Unit s Flash ON/OFF
You can disable tbe master unit from firing during actual exposure so that only
the slave unit{s) will fire in the final picture.
ETTL o Zoom
1
Pfess the < Z O O M / b u t t o n
SO
' '
that the display blinks as shown on
the left.
- эвя
?iOpjn
f"
Disable the master unit’s flash
firing.
• Turn the <©> dial to select < o r/*
•
>,
then press the
<@>
button.
► The<"^> icon will blink.
ETTL OZoom Z4mm
1
Ш
Even if you disable fhe master unit's flash firing, it will still fire a preflash to transmit
wireless signals.
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