When an EX-series Speedlite (such as the 580EX II) controllable by the camera is attached, you can use the camera's menu screen to set the Speedlite's flash function settings such as the flash mode, FEB, and 1st or 2nd curtain sync, and wireless flash. Flash Custom Functions can also be enabled or disabled.

Turn on the Speedlite before setting its functions. For details on which Speedlite settings the camera can set, see the EX series Speedlite's instruction manual.

Select [External Speedlite control]. Under the [] tab, select [External Speedlite control], then press <SET>. Select either [Flash function settings] or [Flash C.Fn settings]. Turn the <> dial to select the menu item, then press <SET>. Set the flash function settings. Select a flash function and set it as desired. The procedure is the same as setting a menu function. On the flash function settings screen, the settable items, current settings, flash mode setting, and flash Custom Function settings might look different on your camera. To reset the flash settings to the default, press the <INFO> button while the flash function setting screen is displayed.

Metered Manual Flash Exposure

This is for close-up flash photography when you want to set the flash level manually. Use an 18% gray card and an EX-series Speedlite which has manual flash mode. Follow the instructions below:

1. Set the camera and Speedlite settings.

• Set the camera's shooting mode <M> or <Av>.
• Set the Speedlite to manual flash mode.

2. Focus the subject.

• Focus manually.

3. Set up the 18% gray card.

• Place the gray card at the subject's position.
• In the viewfinder, the entire spot metering circle at the center should cover the gray card.

4. Press the <FEL> button. ()

5. Set the flash exposure level.

• Adjust the Speedlite's manual flash level and the camera aperture so that the flash exposure level aligns with the standard exposure index.

6. Take the picture.

• Remove the gray card and take the picture.

• If flash exposure compensation has already been set with the Speedlite, you cannot use the camera's <> button or Flash function settings menu to set flash exposure compensation. If it is set with the camera and Speedlite, the Speedlite's setting overrides the camera's.
• If autofocus cannot be achieved, the external, EOS-dedicated Speedlite's AF-assist beam (if the Speedlite has it) will be emitted automatically.
• If focus cannot be achieved with the external Speedlite's AF-assist beam, select the center AF point. With some external Speedlites, autofocus with AF-assist beam works only with the center AF point.
• This camera is a Type-A camera that can use all the features of EX series Speedlites.
• The flash function's [E-TTL II] setting will work together with C.Fn II -4. And [Flash firing] will work with C.Fn II -6
• Only [E-TTL II] and [Flash exp. comp] can be settable for flash function settings with an EX-series Speedlite not controllable by the camera. (For some EX-series Speedlites, [Shutter sync.] can also be settable.)