Canon 600EX-RT User Manual

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When you set the camera’s shooting mode to <V> (Program AE) or Full 
Auto, you can shoot in E-TTL II/E-TTL fully automatic flash mode.
1
Set the flash mode to <a>.
 
Press the <E> button and set to 
<a>.
 
Check that <M> or 
<x> is not displayed.
2
Focus the subject. 
 
Press the shutter button halfway to 
focus.
X
The shutter speed and aperture are 
displayed in the viewfinder.
 
Check that <Q> is lit in the viewfinder.
3
Take the picture. 
 
Check that the subject is in the 
effective flash range.
 
When you press the shutter button 
completely, the flash will fire and the 
picture will be taken.
X
If a standard flash exposure was 
obtained, the flash exposure 
confirmation lamp lights for 3 sec.
Fully Automatic Flash Shooting
 
Even when attached to a camera that supports E-TTL II autoflash 
system, <a> is displayed on the LCD panel.
 
If the flash exposure confirmation lamp does not light or if the subject is 
dark (underexposed) when you check the image on the camera’s LCD 
monitor, move closer to the subject and shoot again. You can also 
increase the ISO speed when using a digital camera.
 
“Full Auto” refers to <
A>, <1>, and <C> shooting modes.
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Y