>>520170429
You have absolutely no idea what you're talking about. This has nothing to do with EMP, there would be actual, visual distortion of the image if it was recording a nuclear blast with that much of it in frame.
It doesn't matter whether the detonation initiated underground or on the fucking moon, that is a direct line of sight camera, and it would be distorting due the nature of CMOS sensors.
If that were a recording of a nuclear blast, it would be full of white pixels and incredibly noticing once the autobalance kicks in and turns most of the frame black.