This product supports wireless flash application and functions as either a master
or a slave unit. As a master unit, it can control Canon speedlites e.g. 580EXII,
600EX-RT via wireless. As a slave unit, it can receive wireless signals of Canon
speedlites e.g. 580EXII, 600EX-RT and commanders of Canon cameras e.g.
7D/60D/600D.
You can set up two to three slave groups for E-TTL II autoflash shooting. With E-TTL II
autoflash, you can easily create various lighting effects.
Any flash settings (of flash exposure compensation, high-speed sync, FE lock, FEB, manual
flash, Multi flash) on the master unit will be automatically sent to the slave units. So the
only thing you need to do is to set the master unit to ETTL mode without any operation
for the slave units at all during the shooting.
This flash can work in ETTL autoflash, M manual flash, and Multi stroboscopic flash modes
when set as a master unit.
Positioning and Operation Range
1．Wireless Settings
Even with multiple slave units, the master unit can control all of them via wireless.
In this user manual, “master unit” refers to the camera flash on a camera and
“slave unit” will be controlled by the master unit.
