Canon Speedlite 430EX III-RT 业主指南

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When using an EOS DIGITAL camera released in and after 2012 
(except EOS REBEL T5/1200D), such as EOS-1D X, you can perform 
linked shooting, which automatically releases the shutter of a slave 
camera unit by linking it to the master camera unit. You can perform 
linked shooting with up to 16 units, including both master units and 
slave units. This is convenient when you want to shoot a subject from 
multiple angles at the same time.
To perform linked shooting, attach a Speedlite or a Speedlite Transmitter 
that supports radio transmission wireless shooting to the camera.
Note that when used with a camera released up to 2011 or EOS REBEL 
T5/1200D, the unit can be used only as a “master camera unit”. The unit 
cannot be used as a “slave camera unit”.

Before performing the operations on the next page, attach a Speedlite 
or transmitter to all the cameras to be used for linked shooting. For 
details on setting other devices, refer to the instruction manuals of the 
devices.

Slave 
camera unit

Slave 
camera unit

Slave 
camera 
unit

Slave 
camera 
unit

The combination of an EOS camera and 430EX III-RT set with linked 
shooting function is called either “master camera unit” or “slave camera unit”.