Canon 0585C006 Instruction Manual page 97

<k> is displayed.
Set the shutter speed 1 stop slower than the flash sync speed (p.49).

The LCD panel illumination turns on and off.
The sender unit's LCD panel illuminates or turns off according to the

charge status of the sender unit and receiver units (firing groups).
See "LCD Panel Illumination" on page 54.
 Linked Shooting
Standard exposure is not obtained /
Uneven exposure occurs.
If you fire multiple Speedlites at the same time during linked

shooting, the appropriate exposure may not be obtained or uneven
exposure may result. It is recommended to set only one Speedlite to
fire or to use a self-timer to space out the timing of the flashes.
Optical Transmission Wireless Flash Shooting

The receiver unit does not fire.
Set the receiver unit to <:i> (p.73).

Set the transmission channels of the sender unit and receiver unit to

the same numbers (p.73).
Check that the receiver unit is within the transmission range of the

sender unit (p.72).
Point the wireless sensor of the receiver unit toward the sender unit

(p.72).
If the sender unit and receiver unit are too close, the transmission

may not take effect properly.
When using the camera's built-in flash as the sender unit, raise the

camera's built-in flash, and set [Wireless func.] on the camera's
[Built-in flash func. setting] screen.
Troubleshooting Guide
97