Developers working with mini DVR modules or reverse cameras have used the term when discussing data transfer problems in Google Groups .
Sites like Scribd list video files such as "Pen Through Finger.mp4" by magicians like Matthew Johnson as part of larger instructional collections.
size-only not working properly with Google Photos - rclone forum
Papers describing electronic "skins" or stretchable transistors often include a finger.mp4 to visualize real-time current response when attached to a bending finger, as seen in ACS Nano .