Canon EOS 20D Instruction Manual page 143

C.Fn-07
You can enable the built-in flash, external Speedlite, and non-Canon
flash connected to the PC terminal to fire.
0: Fires
1: Does not fire
The flash will not fire.
C.Fn-08
0: Off
1: On
For the ISO speed, "H" (equivalent to ISO 3200) will be selectable.
C.Fn-09
You can change the AEB sequence when the pictures are bracketed with the shutter
speed or aperture and the file-saving sequence for white balance bracketing (WB-BKT).
When "Auto cancellation" is set, bracketing will be canceled in the following cases:
AEB: You turn the <4> switch to <2>, change lenses, have flash-
ready, replace the battery, or replace the CF card.
WB-BKT: You turn the <4> switch to <2>, replace the battery, or
replace the CF card.
0: 0, -, +/Enable
1: 0, -, +/Disable
The first bracketed shot is the standard exposure (or exposed with the
standard white balance). This bracketing sequence can be repeated.
2: -, 0, +/Enable
Starts the bracketing sequence with the minus (bluish or magenta bias) setting.
3: -, 0, +/Disable
Repeats the bracketing sequence starting with the minus (or bluish
or magenta bias) setting. This bracketing sequence can be repeated.
AEB
0 : Standard exposure
- : Decreased exposure - : More blue
+ : Increased exposure + : More amber
Flash firing
ISO expansion
Bracket sequence / Auto cancel
B/A Bias
0 : Standard white balance
3 Custom Function SettingsN
WB bracketing
M/G Bias
0 : Standard white balance
- : More magenta
+ : More green
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