Yesterday, I was at a 10 hour shoot and experienced a weird issue pop up a few times throughout the day.
As a preface, I was shooting a 5D2 with both a Sig 50 and Canon 85 1.8. Body had a CyberSync transmitter attached. Also, using a non-OEM battery that has never given me issues.
Every so often, and completely randomly, I would take a picture. It wouldn't load on the screen, and I'd hear a noise like something was flipping back and forth really fast. A clicking sound, almost. Hitting buttons would do nothing, and I'd have to shut down and turn off my camera to regain the ability to use anything. No errors popped up on the LCD, either. This is the first time I've ever had this happen.
Has anyone else ever experienced this?