The lcd monitor does not display a clear image, Part of the image blinks in black, A red box is displayed on the image – Canon EOS-1D Mark IV User Manual
Page 254: The image cannot be erased, The fourth character in the file name changes
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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
[E' Highlight alert]
menu option is set to
[Enable]
(p.157).
A red box is displayed on the image.
• The
[S' 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
[y File name setting]
menu option, select the camera’s
unique file name or the file name registered under User setting 1
(P-86).
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