Canon 0585C006 Instruction Manual page 70

Linked Shooting with Radio Transmission
Setting the focus mode switches of the lenses attached to the receiver

cameras to <MF> and taking the picture with manual focusing is
recommended. If focus cannot be achieved with autofocus, linked
shooting is not possible with the corresponding receiver camera units.
There is a short time lag between the release of the receiver camera

units and the release timing of the sender camera unit. Perfectly
simultaneous shooting is not possible.
You can fire the Speedlite during linked shooting when P.Fn-07-1 is set

(p.88), but the appropriate exposure may not be obtained or uneven
exposure may result if you fire multiple Speedlites at the same time
during linked shooting.
When [Flash firing] in [External Speedlite control] or [Flash control]

is set to [Disabled] (p.42), linked shooting cannot be performed.
When performing linked shooting with a Live View image displayed and

P.Fn-07-0 set (p.88), set [Silent LV shoot.] on the sender camera unit
menu to [Disabled]. If [Mode 1] or [Mode 2] is set, the receiver camera
units will not be released.
The transmission distance may be shorter depending on the conditions

such as the positioning of receiver flashes, the surrounding environment,
and weather conditions.
The linked shooting function is the similar function as the linked shooting

featured by the WFT series of wireless file transmitters. However, linked
shooting cannot be performed in combination with the WFT series.
Moreover, the release time lag differs from linked shooting performed
using the WFT series.
Linked Shooting Using Live View Function
Linked shooting in Live View status is not possible when the Speedlite set to
P.Fn-07-0 is attached to one of the cameras below set as the sender camera
unit.
Perform linked shooting after switching Live View shooting to viewfinder
shooting or set the Speedlite to P.Fn-07-1.
EOS REBEL T6S/760D, EOS REBEL T6i/750D, EOS REBEL T5i/700D,
EOS REBEL T4i/650D, EOS REBEL T3i/600D, EOS REBEL T2i/550D,
EOS REBEL T1i/500D, EOS REBEL XSi/450D, EOS REBEL XS/1000D
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