Canon EOS-1D Mark IV EOS-1D Mark IV Instruction Manual - Page 254

Troubleshooting Guide When the movie is played, camera operation noise can be heard. If you operate the camera's dial or lens during movie shooting, the respective operation noise will also be recorded. Using an external microphone (commercially available) is recommended (p.153). Display & Operation Problems The LCD monitor does not display a clear image. If the LCD monitor is dirty, use a soft cloth to clean it. In low or high temperatures, the LCD monitor display may seem slow or might look black. It will return to normal at room temperature. Part of the image blinks in black. The [4 Highlight alert] menu option is set to [Enable] (p.157). A red box is displayed on the image. The [4 AF point disp.] menu option is set to [Enable] (p.158). The image cannot be erased. If the image has been protected, it cannot be erased (p.172). The file name's first character is an underscore ("_"). Set the color space to sRGB. If Adobe RGB is set, the first character will be an underscore (p.92). The fourth character in the file name changes. With the [5 File name setting] menu option, select the camera's unique file name or the file name registered under User setting 1 (p.86). 254