Canon 550EX User Manual

Page 79

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Using Flash

in

Full Auto Mode

After the flash fires, check that the
flash exposure confirmation lamp

lights.

When a correct flash exposure has

been obtained, the flash exposure

confirmation lamp lights for about 3
sec. If the lamp does not light, the
flash may have been insufficient,

resulting in underexposure. In such a

case, check that the pilot lamp is red,
then move closer to the subject and
take the picture again.

Fill Flash

Fill flash can be used outdoors in daylight to supplement existing light. It can

soften shado\A/ areas of the subject or illuminate a backlit subject.

With fill flash.

Without fill flash.

I

When fill flash is used, the flash exposure level is reduced automatically so that the
subject’s illumination by the flash balances well with the background’s ambient light.
Instead of having a properly-exposed subject and an underexposed background, both

the subject and background are exposed correctly for a natural-looking flash picture.

79

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