Manual

Flash Photography with Speedlite 550EX
Modeling Flash
By firing a modeling flash, you can see the shadows and other flash lighting
effects produced by one or more Speedlites.
Make sure the camera and
Speedlite are properly set for
flash photography.
Press the camera’s depth-of-field
preview button.
► The Speedlite 550EX fires at 70 Hz
for 1 second.
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