Canon EOS 5D MARK IV, Instruction Manual

Page: 558 / 676

Troubleshooting Guide
556
Auto power off is in effect. If you do not want auto power off to
take effect, set [
5
2: Auto power off ] to [ Disable ] (p.76).
Even if [
5
2: Auto power off ] is set to [ Disable ], the LCD monitor
will still turn off after the camera is left idle for approx. 30 min. (The
camera’s power does not turn off.)
The camera cannot be used with EF-S or EF-M lenses (p.55).
Install a recharged battery in the camera (p.42).
Make sure the card is properly inserted (p.45).
If you are using an SD card, slide the card’s write-protect switch to
the Write/Erase setting (p.45).
If the card is full, replace the card or delete unnecessary images
to make space (p.45, 439).
If you try to focus in the One-Shot AF mode and the focus
indicator <
o
> in the viewfinder blinks, or when the AF point is
orange during Live View/movie shooting, a picture cannot be
taken. Press the shutter button halfway again to refocus
automatically, or focus manually (p.58, 159).
The camera turns off by itself.
Shooting-Related Problems
The lens cannot be attached.
The viewfinder is dark.
No images can be shot or recorded.