Canon EOS Rebel T5i 18-55mm IS STM Lens Kit 手册

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页码 388
233
Easy Wireless Flash Shooting
You can have multiple slave units fire as if they were a single Speedlite. 
This is convenient when you need a large flash output.
Basic settings:
Flash mode
: E-TTL II
E-TTL II meter. : Evaluative
Built-in flash
: EasyWireless
Channel
: (Same as slave units)
All the slave units will fire at the same 
output and be controlled to obtain a 
standard exposure.
No matter what the slave ID is (A, B, or 
C), all the slave units will fire as one 
group.
If the flash exposure looks too dark or too bright, you can set flash 
exposure compensation to adjust the slave units’ flash output.
 
Select [1exp. comp.], then press 
<0>.
 
If the flash exposure is too dark, press the 
<Z> key to increase the flash exposure 
and make it brighter. If the flash exposure is 
too bright, press the <Y> key to decrease 
the flash exposure and make it darker.
Fully Automatic Shooting with Multiple External Speedlites
Flash Exposure Compensation