Manual

Flash Photography with Speedlite 550EX

Full Auto Flash

Full Auto E-TTL autoflash used with the <P> Program AE mode is

described here. For details on Speedlite 550EX operations, see the

Speedlite 550EX Instructions booklet.

Set the camera’s shooting mode

to p.

Check that the SSOEX’s pilot lamp

is lit.

Focus the subject.

Take the picture.

• Make sure the flash-ready indicator i

is on, and check the shutter speed

and aperture before taking the

picture.

E-TTL Autoflash in Other Shooting Modes

Even in the Tm , Av, and M 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

Tv (Shutter speed-priority AE)

Manual (30 sec. - 1/250 sec.)

Auto

Av (Aperture-priority AE)

Auto (30 sec. - 1/250 sec.)

Manual

M (Manual) Manual (30 sec. - 1/250 sec.)

Manual

(2) When you press the shutter button completely, 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.