Canon Wireless Transmitter WFT-E5A - Manual (Page 69)

69
Linked Shooting
With linked shooting, up to 10 slave cameras can be linked in a wireless
network (via IEEE 802.11g in ad hoc mode) to the master camera on which
you will release the shutter.
Note that there will be a slight delay after you release the master camera
shutter before the slave cameras shoot. Movie shooting is not supported.
Master camera
Slave camera
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