Canon EOS-1Ds Instruction Manual page 134

Custom Function Settings
MENU
C.Fn-05
C.Fn-06
C.Fn-07
134
Manual Tv/Av set. for M exp.
1: This is convenient when you have to often change the
aperture during studio sessions with studio flash units. Also,
when you use AEB in the manual exposure mode, the
shutter speed can stay fixed while only the aperture is
shifted for AEB.
To set the shutter speed, hold down the <
< > button if C.Fn-11-1/2 is set) and turn the <
2: You set the shutter speed and aperture in the same way as
with C.Fn-05-0. And you can still set the aperture even while
the lens is detached from the camera. Convenient especially
if you want to use a super telephoto lens with more than one
EOS-1Ds body.
3: You set the shutter speed and aperture in the same way as
with C.Fn-05-1. And you can still set the aperture even while
the lens is detached from the camera.
Exposure level increments
1: Sets full-stop increments for the shutter speed and aperture.
2: Sets half-stop increments for the shutter speed, aperture,
and exposure compensation.
When C.Fn-06-2 is set, AEB varying the ISO speed will
be disabled by.
USM lens electronic MF
1: This prevents the focus from being thrown off by inadvertent
turning of the focusing ring after One-Shot AF. With both
C.Fn-07-1 and C.Fn-07-2, manual focusing is possible with
the lens focus mode switch set to <
2: Electronic manual focusing is disabled in the AF mode.
Applicable lenses
EF 50mm f/1.0L USM, EF 85mm f/1.2L USM, EF 200mm f/1.8L
USM, EF 300mm f/2.8L USM, EF 400mm f/2.8L USM, EF
400mm f/2.8L II USM, EF 500mm f/4.5L USM, EF 600mm f/4L
USM, EF 1200mm f/5.6L USM, EF 28-80mm f/2.8-4L USM.
When both C.Fn-04 and C.Fn-07 are set, electronic manual
focusing will be enabled or disabled as follows:
Custom Function No.
Setting
C.Fn-07
∗
When in focus/Not in focus E: Enabled D: Disabled
> button (or the
> (or < >).
C.Fn-04
0, 2
0 D / E
1 D / D
2 D / D
> dial.
1, 3
E / E
E / D
D / D