Option

Description

Optional

Choose a flash mode for the master (commander) flash.

flash

 

TTL

i-TTL mode. Choose flash compensation from values

between +3.0 and –3.0 EV in increments of 1/3 EV.

M Choose the flash level.

– –

Only the remote flash units fire; the master flash does not, although it does emit monitor pre-flashes.

Group A Choose a flash mode for all flash units in group A.

TTL

i-TTL mode. Choose flash compensation from values between +3.0 and –3.0 EV in increments of 1/3 EV.

Auto aperture (available only with compatible flash units;

AA0 325). Choose flash compensation from values between +3.0 and –3.0 EV in increments of 1/3 EV.

MChoose the flash level.

The flash units in this group do not fire.

Choose a flash mode for all flash units in group B. The Group B options available are the same as those listed for Group A,

Channel

above.

Choose from channels 1–4. All flash units in both groups must be set to the same channel.

ACustom Settings: Fine-Tuning Camera Settings 261