Aloha!
I have a Canon 7D. It won't turn on with a lens attached.
The body alone turns on fine, but when attaching the lens, it shuts down.
It isn't the lens because I tested it on a 5D with no problem.
Ideas? I cleaned the contacts with alcohol, but it didn't change anything.
I'm going to update the firmware, but I'm really at loss at what to do next.
Help!
