Canon Speedlite 430EX III-RT Instruction Manual - Page 92

Flash Firing Restriction due to Temperature Increase, Temperature Increase Warning

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f Flash Firing Restriction due to Temperature Increase When continuous flash or modeling flash is repeatedly fired in short intervals, the temperature of the flash head, batteries, and the area near the battery compartment may increase. Repeated firings of the flash automatically activates the flash firing restriction to avoid degrading or damaging the flash head due to overheating. When flash firing is restricted, a warning icon is displayed to indicate the increase in temperature, and the firing interval (with which the flash shootings can be performed) is set automatically between approx. 8 and 25 sec. Temperature Increase Warning As the internal temperature of the Speedlite increases, the warning is displayed in two levels. Display Icon Level 1 (Firing Interval: Approx. 8 sec.) e Level 2 (Firing Interval: Approx. 25 sec.) f LCD panel Red (lit) Red (blinking) Number of Continuous Flash and Rest Time The following table shows the number of continuous flash until the warning is displayed, and the necessary rest time (guideline) until normal flash shooting can be performed. Function Continuous flash* (p.15) Modeling flash (p.36) * At full output. Number of Continuous Flash to Reach Level 1 Warning (Guideline) 32 times or more Necessary Interval Time (Guideline) 20 min. or longer 92

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92
When continuous flash or modeling flash is repeatedly fired in short
intervals, the temperature of the flash head, batteries, and the area near
the battery compartment may increase. Repeated firings of the flash
automatically activates the flash firing restriction to avoid degrading or
damaging the flash head due to overheating.
When flash firing is
restricted, a warning icon is displayed to indicate the increase in
temperature, and the firing interval (with which the flash shootings can
be performed) is set automatically between approx. 8 and 25 sec.
As the internal temperature of the Speedlite increases, the warning is
displayed in two levels.
The following table shows the number of continuous flash until the
warning is displayed, and the necessary rest time (guideline) until
normal flash shooting can be performed.
* At full output.
f
Flash Firing Restriction due to Temperature Increase
Temperature Increase Warning
Display
Level 1
(Firing Interval: Approx. 8 sec.)
Level 2
(Firing Interval: Approx. 25 sec.)
Icon
e
f
LCD panel
Red (lit)
Red (blinking)
Number of Continuous Flash and Rest Time
Function
Number of Continuous
Flash to Reach Level 1
Warning (Guideline)
Necessary Interval Time
(Guideline)
Continuous flash* (p.15)
32 times or more
20 min. or longer
Modeling flash (p.36)