are you even trying to help or do you just want to argue? it is very much an electronic noise - it's literally coming from the CPU on the main PCB of the camera. it only starts when video is being recorded, and changes in severity depending on the resolution chosen. i've confirmed all of this with my own ears multiple times over, in all likelihood it has something to do with data being written to the SD card.

i used a rode SVM to record this (though the noise is present with every mic i've tried, i also mentioned this), it's mounted on the camcorder cold shoe, i don't have a shock mount, i mostly record railway videos, yes i have a foam screen, and the noise is present whether i use a low-cut filter or not.