High-speed sync (fp flash), Off), Focus the subject – Canon 550EX User Manual
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1. High-Speed Sync (FP Flash)
When you set the synchronization mode to high-speed sync (FP flash), the
camera can synchronize with the 550EX at all shutter speeds. When high
speed sync has been set, is displayed in the viewfinder.
• High-speed sync can be used in the E-TTL and M flash modes-
• High-speed sync is especially effective for fill-flash portraits in daylight since you can:
(1) Obtain better background blur with a larger aperture.
(2) Create a catchlight in the subject’s eyes
(3) Soften shadows on the subject’s face
■4 Select the camera's picture-taking
* mode and the Speedlite's flash
mode.
• If you want to use a large aperture (smaller f-
number), set the
Av
or
M
mode
Press the < + > and <-> buttons
simultaneously to select 09 on the
LCD panel.
• Each time you press the <
-I-
> and < — >
buttons simultaneously, the setting changes
in the following loop.
I---------------------►«»------------ 1
Focus the subject.
-(Off)^
0.5 0.7 1 1.5 2
3 4
A
Check that the subject is within the
^ flash range displayed on the 550EX’s
LCD panel.
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