Automatic Flash In Each Shooting Mode - Canon SPEEDLITE 220EX Instruction Manual

Automatic Flash in Each Shooting Mode

Just set the camera's shooting mode to <X> (shutter-priority AE),
<W> (aperture-priority AE), or <O> (manual exposure), and you can
use E-TTL II/E-TTL autoflash.
Select this mode when you want to set the shutter speed manually.
The camera will then automatically set the aperture matching the
shutter speed (30 sec. - 1/X* sec.) to obtain a standard exposure.
X
If the aperture display blinks, it means that the background
exposure will be underexposed or overexposed. Adjust the shutter
speed until the aperture display stops blinking.
Select this mode when you want to set the aperture manually.
The camera will then automatically set the shutter speed (30 sec. - 1/
X* sec.) matching the aperture to obtain a standard exposure.
If the background is dark like a night scene, a slow sync speed will be
used to obtain a standard exposure of both the main subject and
background. Standard exposure of the main subject is obtained with
the flash, while a standard exposure of the background is obtained
W
with a slow shutter speed.
Since a slow shutter speed will be used for low-light scenes, using
a tripod is recommended.
If the shutter speed display blinks, it means that the background
exposure will be underexposed or overexposed. Adjust the
aperture until the shutter speed display stops blinking.
Select this mode if you want to set both the shutter speed and aperture
manually.
O
Standard exposure of the main subject is obtained with the flash. The
exposure of the background is obtained with the shutter speed (buLb,
30 sec. - 1/X* sec.) and aperture combination you set.
* 1/X sec. is the camera's maximum flash sync speed.
In the <Z> or <Y> mode, the result will be the same as shooting in the
<V> (Program AE) mode.
10