The video below is something like a rant, with added self promotion to the extreme, repetition some more self promotion and so on. It also contains what appears to be irrefutable proof that at least the Sony A7R2, but probably by extension most of the A7 bodies, basically have what amounts to an active moisture collection mechanism. The hot-cold situation described in the video will basically make the camera suck in moisture as if it was a moisture suction device. A moisture hoover if you will. Any thoughts on this?
https://www.youtube.com/watch?v=dQbN9Ymm1Wk
If this guys analysis of the body design is correct, Sony might be facing a massive re-call of these bodies, or a class action law suit.