Second-curtain synchronization – Canon 550EX User Manual

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7. Second-Curtain Synchronization

Normally, the flash fires in synchronization with the first shutter curtain when

the shutter is fully open. With second-curtain synchronization, the flash fires

immediately before the second shutter curtain closes at the end of the

exposure. With second-curtain synchronization and a slow shutter speed, you
can create a trailing blur (illuminated by ambient light) that trails a moving
subject (illuminated by the flash) to give a natural-looking illusion of motion.

Set the desired picture-taking mode

' with the camera.

o Press the <-i-> and <-> buttons

^ simultaneously to select H» on the

LCD panel.

• Each time you press the < -E > and < — >

buttons simultaneously, the display changes

in the following loop:

I----------------- ► №►---------------------- 1

Check that the

icon is displayed in

the viewfinder, then take the picture.

With second-curtain synchronization.

With first-curtain synchronization.

Second-curtain synchronization is easier with buLb.
Second-curtain synchronization does not work with the camera’s □ picture-taking

mode and Programmed Image Control modes.

To cancel second-curtain synchronization, press the <-E> and < —> buttons

simultaneously to turn off the icon on the LCD panel.