Canon 550EX manual Tv Shutter Speed-Priority AE and TTL Autoflash

Focus the subject.

Using Flash in Other Camera Modes

(2)Tv: Shutter Speed-Priority AE and TTL Autoflash

By selecting the shutter speed, you can obtain various effects with flash. You can set the shutter speed from 30 sec. to the top sync speed. The camera then sets the aperture automatically to obtain a correct exposure for the background. The TTL autoflash system controls the flash exposure based on the camera-selected aperture.

1 Set the camera’s picture-taking mode to Tv and set the desired shutter speed anywhere from 30 sec. to the top sync speed.

2 Set the 550EX’s flash mode to

.

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4 Check that the subject distance 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.

If the aperture display blinks, the background may turn out overexposed or underexposed. In such a case, change the shutter speed until the aperture display stops blinking.

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