[toni-a]

That's better than what Sony offers in FHD on plenty of current cameras...
IMHO for most of us that's quite enough.

BTW, Toni - ever since you had the Sony A6000 with the ultra-crappy 16-50mm - which we all warned you about - you are bashing Sony. Fact is that Sony has very capable cameras and lenses that are competing on the same level as Canon overall. Just because there's a Canon label on something doesn't make it the holy grail yet.

My problem with Sony is actually reliability issues and frequent failures rather than performance, for instance 16-50 has died since six months, A6000 is having recurrent issues with shutter button leading to camera freezing.
Back to overheating issues, I only complained about it once on A6000 when I was shooting a celebration at our local church otherwise it's perfectly fine for me.
For professional use as said before, if you are using several cameras or video and audio recording are done separately you do need lengthy time shooting, when merging different takes and adding sound you do syncing once then you select the take you want to show in the final movie in software. Otherwise the editors will have nightmares syncing videos and more difficult syncing sound and you might get into lip syncing issues in the final video. when shooting a wedding for instance you never stop recording from the beginning till the end even during idle moments unless you are the only cameraman and you are registering sound with your camera.