Manual flash with a slave unit, Manual flash with a slave unit.110 – Canon 550EX User Manual
Page 110
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Manual flash or stroboscopic flash can be set manually with a slave unit. The
setting is independent from the master unit. The master unit just triggers the
slave unit which fires according to its own independent (manual or
stroboscopic flash) setting. This feature can be used in the following
situations:
(1) As with studio flash, you can set the slave unit’s flash output yourself for
wireless manual flash photography.
(2) For wireless manual flash photography with Wireless Transmitter ST-E.
[4] Manual or Stroboscopic Flash With a Slave Unit
1. Manual Flash With a Slave Unit
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On a slave unit with the wireless selector
set to < SLAVE >, press the <MODE>
button for at least
2
sec.
M will start blinking. It will continue to
blink while the slave unit’s independent
setting is in effect.
To set the flash output, see page 93.
s
To determine the proper flash exposure, use a hand-held flash meter
110