Canon 24EX, 14EX instruction manual Custom Function Settings, Function Setting Description

Custom Function Settings

C.Fn	Function	No.	Setting Description
1	Automatic cancellation	0	Enabled
	of FEB	1	Disabled
		0	Standard exposure  Decreased
			exposure  Increased exposure
2	FEB sequence
		1	Decreased exposure  Standard
			exposure  Increased exposure
3	Flash metering mode	0	E-TTL II/E-TTL autoflash
		1	TTL autoflash
		0	E-TTL II/E-TTL autoflash: Full output
4	Test firing button		Manual flash: Fires at set output
		1	Uniform modeling flash
5	Wireless control	0	Slave C only
		1	Slaves A, B, and C
6	Modeling Flash	0	Enabled
		1	Disabled
		0	Recycle with both the MR-14EX/MT-
	Flash recycling with		24EX and external power source
7
	external power source	1	Recycle with the external power
			source only
8	Flash ratio increments	0	1/2 stop
		1	Full stop
9	Focusing lamp on/off	0	With focusing lamp button
		1	Double-click shutter button

* C.Fn-8 and C.Fn-9 apply to the MT-24EX only.

C.Fn-4: If 1 is set and both flash tubes/heads are selected to fire with autoflash, the modeling flash will be fired by both A and B at the same output. With manual flash, the modeling flash will be fired according to the flash ratio that was set.

C.Fn-5: If 1 is set, any slave units whose slave ID has been set to A or B will fire in the same group as flash tube/head A or B set as the master unit.

C.Fn-6: If 1 is set and you press the camera’s depth-of-field preview button, you

can check the depth of field. The modeling flash cannot be fired.

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