5D Mark II & Current
- Err 10 – related to files
- Err 20 – related to the mechanical mechanism
- Err 30 – related to the shutter
- Err 40 – related to the power source
- Err 50 – related to the electric control
- Err 70 – related to images
- Err 80 – related to the electric control of images
Read more from the source, Tallyn’s
Unfortunately Error 99 will remain a mystery. The magical error has so many meanings that it requires quite a bit of physical diagnosing to discover a problem. The three most common reasons for an Error 99 are a lens problem like a failing aperture, lens/camera connection problem or a mirror box/shutter problem.
