Canon EOS 550D 用户手册

3

 Setting the FlashN

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* Regarding [FEB] (Flash exposure bracketing), [Zoom], and [Wireless set.], 

refer to the Speedlite’s instruction manual.

 

Flash mode
With an external Speedlite, you can select the flash mode to suit 
your flash shooting.

 

[E-TTL II] is the standard mode of EX-series 
Speedlites for automatic flash shooting.

 

[Manual flash] enables you to set the flash 
output yourself. This is for advanced users.

* For other flash modes, refer to your 

Speedlite’s instruction manual.

 

Shutter sync.
Normally, set this to [1st curtain] so that the flash fires immediately 
after the exposure starts.
If [2nd curtain] is set, the flash will fire right before the exposure 
ends. When this is combined with a slow sync speed, you can create 
a trail of light such as from car headlights at night. With 2nd curtain 
sync, two flashes will be fired: Once when you press the shutter 
button completely, and once immediately before the exposure ends. 
However, with shutter speeds faster than 1/30 sec., 1st curtain sync 
will automatically take effect.
If an external Speedlite is attached, you can also set [Hi-speed]. For 
details, see the Speedlite’s instruction manual.

E-TTL II (Fixed)

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