Shooting Modes and Exposure

• Hold down the "Mode" button, and turn the quick control dial on the back of the camera to select a shooting mode. Modes include program, aperture priority, shutter speed priority and manual. In program, aperture-priority and shutter-priority modes, use the quick control dial to adjust exposure value. Use the main dial, behind the shutter release, to adjust the default setting. In manual mode, use the main dial to adjust shutter speed and the quick control dial to set aperture.
  
  

ISO Setting

• Hold down the "ISO" button while turning the main dial to adjust the ISO. The Canon 1D's ISO ranges from 100-12800. The camera automatically sets the ISO when the ISO setting is changed to "AUTO."
  
  

Movie Mode

• Press the "MENU" button, and select the "Live View Movie Function" setting on the LCD menu. Select the "movies" option. Select your movie recording size to preference and you will be guided to the live view screen. Press the shutter release button to start and stop recording.
  
  

File Types

• Select the "Quality" option in the main menu using the main control dial. Chose a file type and size for your pictures. The EOS 1D can shoot RAW files, JPEGs or both simultaneously. RAW files carry three time as much information as JPEGs, giving you more detail while editing your photos. The "RAW" option in the menu refers to the largest raw file type. The "SRAW" option refers to smaller raw files. The L,M, and S settings refer to the large, medium, and small file sizes for JPEG files.