Canon EOS-1DS MARK III Instruction Manual page 67

Custom Function Settings
You can assign a frequently-used function to <_ET> When the camera is
ready to shoot, you can press < _-_>.
0: Normam (disabled)
1: White balance
While looking at the rear LCD panel, you can change the WB.
2: linage size
While looking at the rear LCD panel, you can change the memory card
and image size.
3: [SO speed
While looking at the top LCD panel or in the viewfinder, you can change
the [SO speed.
4: Picture Style
The [_" Picture StyJe] menu will appear.
5: Record func. + mediatfoJder
The [t?" Record func+media/foIder sel.] menu will appear.
6: Menu dispJay
Gives the same function as the <MENU> button.
7: Image pJayback
Gives the same function as the <[_> button.
If the lure View shoot.] menu has been Setto [Enabme], the Live view
shooting wi!! override any setting from 1 to 7 abo ve. Ptessing< _J > will
show the Live View image instead.
0: Tv= _ lAy= ©
1: Tv=©tAv=_
Convenient when you use studio flash and frequently change the
aperture.
Also, when you use AEB in the manual exposure mode, the shutter
speed can stay fixed while only the aperture is shifted for AEB. The
shutter speed can also be set by pressing the <[_> button and turning
the <_bJO> dial.
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