Hello, I just came back from a day of shooting with my Canon and several images are banded like this. Some have horizontal banding. I was shooting fast. Is it a write to disk problem, did the SSD card just go bad, or is it the camera? Thanks! --Joy
A banded image like this is caused by the file being corrupted. This can be caused by a couple of things:
Incomplete copying - did you safely eject the SD card when you removed it from your computer? Can you try copying the file from the card again.
Corruption on disk - there could be issues with the hard drive on your computer, and the files have become corrupted there, this is unlikely unless you have seen other issues with your computer.
Incomplete writing onto the memory card - if you eject the card too quickly from the camera after taking the shot, then it's possible that the camera didn't have time to finish writing to the card. This is unlikely if affected images are interspersed with OK ones.
Failing Memory card - probably the most likely issue, check the camera with a different card. If the card is failing, then just replace it.
Corruption in camera processing/sensor - unlikely but if you've ruled out everything above then there may just be an issue with the data pathways in the camera itself. If so, the camera is probably dead.