Using an Externally Mounted Flash (Sold Separately)170Configuring the Externally Mounted Flash(Sold Separately)Speedlite 270EX, 430EX II, and 580EX II• The maximum flash synchro shutter speed is 1/250 second.• The flash output will automatically adjust when [Flash Mode] is set to[Auto]. Flash exposure compensation and safety FE can also be set.However, when setting flash exposure compensation on the camera, makesure to set the flash exposure compensation amount on the flash to [+0]beforehand.• The flash output can be adjusted on the camera or the flash* if [FlashMode] is set to [Manual].* With Speedlite 270EX, settings cannot be made on the flash.• In D mode, you can set the flash output on the camera even if the flashunit is set to E-TTL flash exposure compensation. [E-TTL] will display onthe flash, but the flash will fire at the flash output set on the camera. Theflash compensation amount set on the flash will also change.• Settings available on the camera are as follows.Item Options Shooting modeG M B DFlash Mode Auto/Manual { { { *1Flash Exp.Comp -3 to +3 { { { –Flash Output 1/128*2 to 1/1 (in 1/3 steps) { { { {Shutter Sync. 1st-curtain/2nd-curtain/Hi-Speed { { { {Slow Synchro On/Off { *3 { * 3Wireless Func.* 4 On/Off { { { {Red-Eye Corr. On/Off { { { {Red-Eye Lamp On/Off { { { {Safety FE On/Off { { { *5Clear Flash Settings* 6 Resets settings to their default values. { { { {
