Oh dear, I received feedback from the supplier today and the news is not good. Canon say the camera is 'unrepairable' and have asked if I can stand by for a
possible firmware update in the future to address this issue. I almost fell off my chair!
Here's the thing
1) It seems that this problem is isolated to my 50D only; and
2) Why would Canon release a firmware update to fix ONE camera out there?
Canon said this is a known issue with the 50D, but how can it be a known issue when its only my camera that is showing this fault? Everyone else seems to be having a great time with their 50D's without any crazy vertical bands in their images. /sigh
Anyway, I have rejected their findings and their subsequent offer of sending a faulty camera back to me
The process continues...