Canon EOS 20D Instruction Manual

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3 Custom Function SettingsN
C.Fn-07
Flash firing
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
ISO expansion
0: Off
1: On
For the ISO speed, “H” (equivalent to ISO 3200) will be selectable.
C.Fn-09
Bracket sequence / Auto cancel
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
WB bracketing
B/A Bias
M/G Bias
0 : Standard exposure
0 : Standard white balance
0 : Standard white balance
- : Decreased exposure -  : More blue
-  : More magenta
+ : Increased exposure + : More amber
+ : More green