3.About the Ex Compat trigger
When using the 430ex/550ex/580ex flash etc. which
does not support camera menu controlling the flash,
enable this function can use the controller to remote
control the manual flash power output of the above
flash.
Reference
18
1).Set the C.FN 05 of the controller as ON(P.14).
2).Set the flash on the YN622C as E-TTL flash mode.
3).Set the controller as manual flash under the GR
mode, set the flash output.
*The flash screen will not display the flash output.
*If you do not use the above model flash, please set
the C.FN 05 as OFF.
4.About the LCD backlight:
Press any button, the LCD backlight will light for 5 seconds.
5.About the battery electricity display :
The battery icon in the upper right corner of the LCD will
display the current electricity. When in low battery, the
battery icon will blink, please replace the battery.