*Screens from the EOS-1D Mark III.
Protection Function
1. Over-Temperature Protection
To avoid overheating and deteriorating the flash head, do not fire more than 75 continuous
flashes in fast succession at 1/1 full power. After 30 continuous flashes, allow a rest time of at
least 75 minutes.
If you fire more than 75 continuous flashes and then fire more flashes in short intervals, the
inner over-temperature protection function may be activated and make the recycling time
over 10 seconds. If this occurs, allow a rest time of about 10 minutes, and the flash unit will
then return to normal.
When the over-temperature protection is started,
is shown on the LCD display.
Number of flashes that will activate over-temperature protection:
Power Output Level
Number of Flashes
1/1
75
If flash exposure compensation has already been set with the camera flash, flash
exposure compensation cannot be set with the camera. To set it with the camera, the
camera flash’s flash exposure compensation must be set to zero.
If any Flash Custom Functions and flash settings other than flash exposure
compensation have been set by both the camera and the flash, the latest settings
will take effect.
