Autoflash with Three Receiver Groups

Once firing groups A and B have been set up, you can fire with multiple Speedlites by adding group C. For an overview of flash control, see Group Control.

Group C is useful when you want to eliminate shadows in the background behind subjects.

  1. Push the joystick straight in.

  2. Select the item shown in (1).

    • Press the joystick vertically or horizontally or turn Select dial to select the item, then push the joystick straight in.

  3. Set to A:B C.

    • Press the joystick horizontally or turn Select dial to select A:B C, then push the joystick straight in.

  4. Add Speedlites to firing group A, B, or C and position them.

    • Confirm that all receivers and the sender are set to the same transmission channel and wireless radio ID.
    • Set up receivers for group A, B, or C and position them.

  5. Check the channel and ID.

    • Set the same transmission channel and wireless radio ID on senders and receivers, if they are different ().

  6. Set the A:B flash ratio.

    • Push the joystick straight in to select the item shown in the figure.
    • Press the joystick horizontally or turn Select dial to set the A:B flash ratio, then push the joystick straight in.

  7. Set the flash exposure compensation amount for firing group C.

    • Push the joystick straight in to select the item shown in the figure.
    • Press the joystick horizontally or turn Select dial to set the amount of compensation, then push the joystick straight in.

  8. Check the connection and make sure the flash units are charged.

    • Confirm that the LINK lamp is lit in green.
    • Confirm that the sender and receiver flash-ready lamps are lit.
    • The sender beeps after all Speedlites have been recharged when P.Fn-05 is set to [0] ().
    • Make sure Sender wireless not connected is not displayed on the sender LCD panel.
    • Confirm that the Receiver fully charged icon indicating completion of sender/receiver charging appears on the sender LCD panel (CHARGE is not displayed).
    • For details on sender LCD panel illumination, see LCD Panel Illumination.

  9. Check operation.

    • Press the test flash button on the sender.
    • The Speedlites fire. If they do not fire, confirm that they are within transmission range ().

  10. Take the picture.

    • Just as in normal flash photography, shoot after configuring the camera.

Caution

  • Radio transmission is not possible when Sender wireless not connected is displayed on the LCD panel. Double-check the transmission channels and wireless radio IDs of senders and receivers. If you cannot connect with the same settings, restart the senders and receivers.
  • Aiming the units in firing group C directly at subjects may cause overexposure.

Note

  • You can fire the modeling flash by pressing the camera's depth-of-field preview button ().
  • Auto power off takes effect in approx. 5 min. when the Speedlite is set as a sender.
  • To turn on a receiver that is in auto power off mode, press the sender test flash button.
  • Test flash firing is not available while a camera's flash timer or similar functions are active.