Canon Speedlite 600EX RT 用户手册

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页码 132
49
' Radio Transmission Wireless Flash Shooting
You can divide the slave units into two or three groups and perform 
E-TTL II/E-TTL autoflash shooting while changing the flash ratio 
(factor). In addition, you can set and shoot with a different flash mode 
for each firing group, for up to 5 groups.
  Autoflash Shooting with Two Slave Groups 
(p.61)
  Autoflash Shooting with Three Slave Groups 
(p.62)
Wireless Multiple Flash Shooting
A
B
A
B
C