Canon 550 EX - Manual (Page 79)

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 shadow areas of the subject or illuminate a backlit subject.
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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.
06. F073-E (77~) 02.4.1 2:26 PM Page 79