Canon Speedlite 600 EX-RT User Manual (en, zh)

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37
//.: Flash External Metering
You can manually set the Speedlite with the ISO speed and aperture set 
in the camera. The flash output is automatically adjusted according to 
the ISO speed and aperture that you set.
1
Set the flash mode to <.>.
 
Press the <E> button and set to 
<.>.
 
If <.> is not displayed, set the 
flash Custom Function to C.Fn-05-3 
(p.96).
2
Set the same ISO speed as on the 
camera.
 
Press function button 3 <I>.
X
The ISO speed value is highlighted.
 
Turn <9> to set the ISO speed, and 
press the <8> button.
 
ISO speed can be set within a 
maximum range of ISO 25 to 51200, 
in 1/3 increments.
3
Set the same aperture as on the 
camera.
 
Press function button 4 <D>.
X
The aperture is highlighted.
 
Turn <9> to set the aperture, and 
press the <8> button.
.: Manual External Flash Metering
 
You can check the effective flash range on the Speedlite’s LCD panel.
 
When using manual external flash metering and shooting with the camera 
and Speedlite’s PC terminal connected by a commercially-available sync 
cord, you can shoot with the flash off the camera.
 
If you connect a different Speedlite to the Speedlite’s PC terminal with a 
sync cord, it will not fire.
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