Auto Power Off; File Numbering; Sensor Cleaning; Lcd Brightness - Canon EOS 1D Instructions Manual

Menu Settings
MENU

Auto power off

To avoid exhausting the battery, "Auto power off" turns off the
camera automatically after the camera is left unused for a set
time period. You can set this time to 1, 2, 4, 8, 15, or 30 min.
"Off" will disable this feature.

File numbering

Each picture you take is assigned a file number. Set the file
numbering system to "A-Reset" or "Continuous." (→p.56)
Selecting "M-Reset" will create a new folder and the file number
will start from 0001.
Date/time
Sets the date and time. You can also change the date format
(year, month, day). (→p.148)
Format
This formats the CF card in the camera. (→p.126)

Sensor cleaning

Select this when you want to clean the CCD sensor. (→p.150)

LCD brightness

This sets the brightness of the LCD monitor. While pressing the
< > button, turn the < > dial to set one of five settings.
130