G85 overheating? record time? light sensitivity? stabilization?

I had a major and potentially serious overheating issue on my still very new G80 a few months ago. Not with shooting but the camera locked up while I was reviewing some shots. I couldn’t turn it off or do anything with it. What I should have done at the time but stupidly didn’t was to remove the battery but I was with people and we were rushing to get to the station to catch a train so it was only when we were actually on the way home maybe half an hour or more after the camera froze that I suddenly remembered to check it. I took it out of the case and the body was hot. Not warm, hot! I took the battery out which was hotter still. I let everything cool down during which time I was worried that I’d fried the camera. I got it up and running again it seemed OK and subsequently had a Panasonic techie do a quick check at a photo show and he thought it was OK. I’m not totally convinced that the amount of heat generated hasn’t done something nasty to the electronics and may well get it properly checked at some point. The lockup hasn’t happened since but my real worry was had I not remembered to take the battery out I have every reason to think it may well have exploded. So this is is just a warning to anyone should this happen...attend to it straight away!

Sounds like you had a software glitch that put the processor into some kind of a continuous loop lockup that kept the processor running all out. This caused the system to heat up from constant power drain. It doesn't sound like an overheating problem that caused a lockup, but the other way around. Computer systems sometimes have failures like this, either due to a bug in the code, a cosmic ray, or a faulty component.

Most electronic components are good up to 85Celsius, much hotter than you could touch. I'm sure nothing got fried. (Sony RX100s get that hot regularly with no problems

It is good advice to take out the battery if it locks up, to reset the system.