Canon EOS-5D Instruction Manual page 150

3 Setting a Custom FunctionN
Resetting All Custom FunctionsN
The C.Fn-00 focusing screen setting will not be canceled.
When the shooting mode is <l>, the camera settings and Custom
Function settings cannot be reset or cleared to the default settings.
150
Select [Clear settings].
1
Turn the <5> dial to select [c
Clear settings], then press <0>.
The Clear settings screen will appear.
Select [Clear all Custom
2
Functions].
Turn the <5> dial to select [Clear all
Custom Functions], then press
<0>.
Select [OK].
3
Turn the <5> dial to select [OK], then
press <0>. All the Custom Functions
will be reset to the default settings.