Canon 580EX II 사용자 설명서

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With high-speed sync (FP flash), the flash can synchronize with all 
shutter speeds. This is convenient when you want to use aperture 
priority for fill-flash portraits.
Select <c>.
 
Press the <E> button so that 
<c> is displayed.
 
In the viewfinder, check that the <F> 
icon is displayed.
c
 High-speed Sync
 
If you set a shutter speed that is the same or slower than the camera’s 
maximum flash sync speed, <F> will not be displayed in the viewfinder.
 
With high-speed sync, the faster the shutter speed, the shorter the 
effective flash range will become. Check the LCD panel for the effective 
flash range.
 
To return to normal flash, press the <E> button again. The <c> 
icon will disappear.
 
Stroboscopic flash cannot be set.
A65_02.fm  Page 17  Thursday, November 23, 2006  1:27 PM
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