From the video capture of UFOs over the Pleiades on Sept. 12, 2015, the camera was taken out of focus so that the UFO appeared to be a ring rather than a smaller solid point of light. This I believe is a positive in that the light's pulsations and bursts can be seen more clearly much as the corona of the Sun can be seen during an eclipse and details become more evident.
These stills are a progression of pulsations and bursts that take place in just a few second's time:
These stills are a progression of pulsations and bursts that take place in just a few second's time:
Below is yet another sequence with the donut corona effect with all of it being a progression that occurs in just a few second's time: