Aspect Ratio; Exposure Simulation - Canon EOS 1D Mark III Instruction Manual

3 Custom Function Settings
C.Fn IV -14
During Live View shooting, vertical lines corresponding to the aspect ratio
will be displayed. You can thereby simulate framing for medium- and large-
format film sizes such as 6x6 cm, 6x4.5 cm, and 4x5 in.
This aspect ratio information will be appended automatically to the captured
image. (The image will not actually be saved to the memory card as a
cropped image.) When the image is transferred to a personal computer and
the Digital Photo Professional (provided software) is used, the image will be
displayed in the aspect ratio you specified.
0: Off

1: Aspect ratio 6:6

2: Aspect ratio 3:4
3: Aspect ratio 4:5
Aspect ratio information will also be appended when you shoot through
the finder.
During image playback on the camera, vertical lines for the respective
ratio will be displayed.
C.Fn IV -15
0: Off
1: On
Data for verifying whether the image is original or not is appended to the
image automatically. When the shooting info of an image appended with
the verification data is displayed (p.117), the <L> icon will appear.
To verify whether the image is original, the Original Data Security Kit
OSK-E3 (optional) is required.
C.Fn IV -16
0: Disable (LCD auto adjust)
1: Enable (simulates exposure)
During Live View shooting, the real-time picture shows the brightness
corresponding to the exposure setting. This enables you to check the
image's exposure right before you take the picture.
Even if 1 is set, the exposure simulation will not be displayed when an
external flash is used nor during bulb exposures.
178
Add aspect ratio information
4: Aspect ratio 6:7
5: Aspect ratio 10:12
6: Aspect ratio 5:7
Add original decision data
Live View exposure simulation