When an EX-series Speedlite (such as the 580EX II and 430EX II) settable by the camera is attached, you can use the camera's menu screen to set the Speedlite's flash function settings and Custom Functions.
First attach the Speedlite to the camera and turn on the Speedlite. For details on Speedlite functions, refer to the Speedlite's instruction manual.
- If you press the <INFO> button in step 3, you can revert the setting to the default.
- With an EX-series Speedlite not settable with the camera, only [Flash exp. comp], [E-TTL II], and [Flash firing] are settable for [Flash function settings]. (For some EX-series Speedlites, [Shutter sync.] is also settable.)