Canon 5D Mark III User Manual (en)

Troubleshooting Guide
If you selected [Clean nowf], the shutter will make a noise, but no 
picture is taken (p.290).
If you repeatedly turn the power switch <1> and <2> at a short 
interval, the <f> icon may not be displayed (p.34).
What is displayed on the screen differs depending on the printer. This 
instruction manual lists all the printing effects available (p.300).
Install the provided software (EOS Solution Disk CD-ROM) on the 
personal computer (p.391, 392).
Check that EOS Utility’s top screen is displayed.
Sensor Cleaning Problems
The shutter makes a noise during sensor cleaning.
Automatic sensor cleaning does not work.
Printing-Related Problems
There are fewer printing effects than listed in the instruction 
Image Transfer Problems
I cannot transfer images to a personal computer.