Fill flash – Canon Speedlite 420EX User Manual
Page 19
Attention! The text in this document has been recognized automatically. To view the original document, you can use the "Original mode".

Flash in Full Auto Mode
confirmation lamp lights.
• When a correct flash exposure has
been obtained, the lamp lights for
about 3 sec. If it does not light,
underexposure may have occurred.
Check that the < PILOT> is lit, then
move closer to the subject and take
the picture again.
Q • The prellash is fired to obtain a meter reading of the subject.
• The main flash is used for the actual flash exposure.
Fill Flash
Even in daylight, you can use flash as fill light to soften harsh shadows or
illuminate a dark, backlit subject.
The image has been removed due
to copyright restrictions
The image has been removed due
to copyright restrictions
With fill flash.
Without fill flash.
Q With fill flash, the subject illuminated with flash might look unnatural compared to
the background's brightness. To prevent this, the flash output is reduced
automatically to obtain a more natural balance between the subject and
background brightness. This is called automatic flash output reduction.
19