I have been very disappointed to find this 6800.00 paper weight has even more issues.
First was error 80
Now it started when I turn it off and right back on or let it sleep and you default to 100 ISO
Next Defaults back to Flash and Ambi Exp Compensation set to center.
Also had some focus issues with it racking in and out and I have to let go of the Focus button and re focus and it works
with Custom funtion for AF on Button set to 14fps mode when you push it it actually puts it in one shot Silent Drive Mode.
I have 2 1D4's and 2 5D3's and t4i just for Cont. Focus Video no issues with the rest. or any of my lenses.
I will say that someday when they gets it fixed it will be FABULOUS I love all the new Controls and Buttons
Canon Really Stepped in it this Time.
They Told me end of the month before we see firmware and they could not tell me if my new issues would be addressed
only Err 80 for sure ( well maybe )