Canon 550EX - Manual (Page 47)

Stroboscopic Flash
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2 Press the <SEL/SET> button to
^ select the firing frequency, flash
count, or flash output display. When
selected, the respective item blinks
on the LCD panel to indicate that it
can be altered. Pressing the
<SEL/SET> button changes the
blinking item in the following loop:
Firing frequency-► Fiash count-^FIash output
I
------------------- (Normal display)-^----
□
2 Press the < + > or < - > button to set
the desired value for the blinking
item.
I
Press the <SEL/SET > button again
to register the value. The item will
then stop blinking and remain
displayed. The next item will then
start blinking. Repeat steps 3 and 4
to set the next item.
• After you set the flash output and press the
<SEL/SET > button, the firing frequency,
flash count, and flash output are displayed.
• Shooting With Stroboscopic Fiash
To shoot with stroboscopic flash, you must set a shutter speed that gives the
550EX enough time to fire according to the firing frequency and flash count
you have set.
Set the camera's picture-taking mode
to M and set the desired aperture.
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