It feels like there are images missing. Where are the images that would show it moving into and out of the frame? It just appears out of nowhere. Where are the images before and after the fall off the table? I think this guy is hiding information. I understand him not wanting to release the originals. His camera may embed exif data that would reveal his precise location. He should be able to tell us more about his camera and configuration. He should be willing to test the hypothesis that it was a helicopter and go out in the field and take a bunch of measurements of helicopters at night under a variety of exposure times. That he doesn't want to smells like he wants the opportunity for his image to be on a UFO show for some notoriety.