Canon EOS-1Ds Instruction Manual
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.
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.
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. - 1/250 sec.)
Auto
(Aperture-priority AE)
Auto (30 sec. - 1/250 sec.)
Manual
(Manual)
Manual (30 sec. - 1/250 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.