Canon EOS-1D X Mark III Advanced User's Manual page 394

2.
Select [All by same amount].
3.
Press the <
4.
Make the adjustment.
Set the adjustment amount. The adjustment range is ±20 steps.
Setting it toward "–:
standard point of focus.
Setting it toward "+:
standard point of focus.
After making the adjustment, press <
Select [All by same amount], then press <
> button.
" will shift the point of focus in front of the
" will shift the point of focus to behind the
394
>.
>.