Canon EOS 1D Mark III User Guide - Page 27

If the light source changes, the Live View picture may flicker. If this happens, stop the Live View shooting and press the SET button to start the Live View shooting again. During continuous shooting, the exposure for the first shot will also be applied to subsequent shots. If the sun or other bright light source enters the picture, the bright area might look dark. However, it will be correctly recorded as a bright area. Note that FE lock and modeling flash cannot be used. Viewfinder shooting Normal shooting Flash SW-1 ON Metering (AE sensor) AF (AF sensor) SW-2 ON Mirror lockup Shutter opens SW-1 ON Metering (AE sensor) AF (AF sensor) SW-2 ON Flash metering (AE sensor) Mirror lockup Shutter opens Exposure (CMOS) WB (CMOS) Shutter closes Mirror returns Captured image displayed Exposure (CMOS) WB (CMOS) Shutter closes Mirror returns Captured image displayed Live-view shooting Normal shooting Flash SET: Mirror lockup SET: Mirror lockup Shutter opens Shutter opens Metering/WB (CMOS) SW-1 ON SW-2 ON Shutter closes Shutter opens Exposure (CMOS) Metering/WB (CMOS) SW-1 ON SW-2 ON Shutter closes Mirror returns Flash metering (AE sensor) Mirror lockup Shutter opens Exposure (CMOS) Shutter closes Shutter closes Captured image displayed Captured image displayed ( Live-view display/ Continuous shooting) Thermal Issues With Live View shooting, the camera's internal temperature increases due to heat from the CMOS sensor, and other components. For normal shooting, this is not a problem. There is no Live View operation limit at 23°C/73°F for Remote Live View shooting and Camera Live View shooting, whether you use a memory card or external recording media via the WFT-E2A. However, if the camera is under direct sunlight or near hot studio lights during Live View shooting, the camera's internal temperature will increase more than usual and the screen may show a warning icon shaped like a thermometer. If the warning icon appears, you can continue shooting and the operation will not be forced to terminate if you are using a memory card. However, since the image quality might degrade, it is recommended that you stop shooting if the warning icon appears. If you use a MicroDrive and you keep shooting even when the warning icon appears, the Live View shooting will terminate automatically after the internal temperature reaches a certain level. This is to protect the MicroDrive from the heat. If the Live View shooting terminates automatically, Live View shooting will not be possible until the internal temperature goes down. VI. LIVE VIEW MODE 27