Wireless selector, Xijimster – Canon 550EX User Manual
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4. Wireless Selector
The wireless selector has three settings as shown below.
10^*
r
SLAVE
xijimSTER
Set to OFF to use the 550EX as a
normal, on-camera Speedlite.
Set to MASTER to use the 550EX as the
master unit in a wireless, multi-Speedlite
system.
Set to SLAVE to use the 550EX as a
slave unit in a wireless, multi-Speedlite
system.
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