Canon 550EX manual High-Speed Sync FP Flash, Press Buttons, LCD panel

Focus the subject.

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.

1Select 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
2 simultaneously to select		on the
LCD panel.
• Each time you press the <		> and <	>

buttons simultaneously, the setting changes in the following loop.

(Off)

3

4 Check that the subject is within the flash range displayed on the 550EX’s LCD panel.

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