107
Flash Photography
6
Flash Photography with Speedlite 550EX
E-TTL Autoflash
Using E-TTL autoflash in the < > Program AE mode is described below. For details on using
Speedlite 550EX, see the instructions booklet that came with it.
Set the camera’s shooting mode to < >.
1
Check that the 550EX’s pilot lamp is lit.
2
Focus the subject.
3
Take the picture.
•
Make sure the flash-ready indicator < > is on, and
check the shutter speed and aperture before taking
the picture.
4
E-TTL Autoflash in Other Shooting Modes
Even in the <
>, <
>, and <
> modes, E-TTL autoflash is as easy as normal picture-
taking without flash.
(1) When you press the shutter button halfway, the shutter speed and aperture are set
by the camera as with normal picture-taking without flash.
Mode
Shutter Speed Setting
Flash Aperture Setting
(Shutter-priority AE)
Manual (30 sec. - 1/500 sec.)
Auto
(Aperture-priority AE)
Auto (30 sec. - 1/500 sec.)
Manual
(Manual)
Manual (30 sec. - 1/500 sec.)
Manual
∗
Since using the <
> mode in low light will result in a slow shutter speed, use a tripod to
prevent camera shake.
(2) When you press the shutter button fully, preflash evaluative metering based on the
aperture set in (1) is used for the E-TTL autoflash exposure.
(3) The background exposure is set by the shutter speed and aperture combination.
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