Bob - sorry for taking this long to reply. I finally got around to updating the camera firmware. The lock up issue I previously experienced when using the 18-135mm STM lens on my T4i is gone. I tried several times using the same sequence that prev...
I have the same issue - T4i locking up in the ON position. I bought the camera approximately 16 months ago and didn't use it much until this month and a few times the camera locked up and I had to remove and reinstall the battery to get it to functi...
