Canon 550EX manual Using Flash in Full Auto Mode

1. Using Flash in Full Auto Mode

Set the camera’s picture-taking mode to P (Program AE) or (Full Auto). Flash photography will then be as easy as normal AE photography. The camera sets the aperture and shutter speed automatically to suit a wide variety of lighting conditions including outdoor fill flash. The E-TTL autoflash system sets the flash exposure automatically.

1 Set the camera’s picture-taking mode to P.

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Set the 550EX’s flash mode to

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Focus the subject.

•The shutter speed and aperture will be displayed in the viewfinder.

•The shutter speed will be set automatically at 1/60 sec. or faster (up to the top sync speed). The aperture is also set at the same time.

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

5 Check that the icon is displayed in the viewfinder, then take the picture.

•A preflash is fired immediately before shutter release and the main flash. The subject’s meter reading is obtained with the preflash and used to set the output of the main flash. An optimum flash exposure is thereby obtained.

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