Flash Photography with Speedlite 550EX

Full Auto Flash

Full Auto E-TTL autoflash used with the Program AE mode is described here. For details on Speedlite 550EX operations, see the Instructions that came with it.

1 SetP. the camera’s shooting mode to

2 Checkis lit. that the 550EX’s pilot lamp

3 Focus the subject.

4 Make sure the flash-ready indicator is lit, check the shutter speed and aperture, then take the picture.

E-TTL Autoflash in Other Shooting Modes

Even in the Tv, Av, and M modes, E-TTL autoflash can be used as easily as without flash.

(1)When you press the shutter button, the shutter speed and aperture are set by the camera as usual.

Mode

Shutter Speed Setting

Flash Aperture Setting

Tv (Shutter speed-priority AE)

Manual (30 sec. - 1/200 sec.)

Auto

 

 

 

Av (Aperture-priority AE)

Auto (30 sec. - 1/200 sec.)

Manual

 

 

 

M (Manual)

Manual (30 sec. - 1/200 sec.)

Manual

 

 

 

(2)When you press the shutter button completely, preflash evaluative metering based on the aperture setting is used for the flash exposure.

(3)The background exposure is set by the shutter speed and aperture combination.

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Canon EOS-3 manual Full Auto Flash, TTL Autoflash in Other Shooting Modes, Flash Photography with Speedlite 550EX