Speedy Orbs Often Look Like Venn Diagrams

Below are three photos of speeding orbs I took on December 28, 2016, February 1, 2017,  and February 10, 2017.  In each case we see orbs that look rather like the overlapping circles of a Venn diagram.  The camera is catching two position states of a speeding object.  Orbs moving not-so-fast will have such a "Venn diagram" look, but orbs moving much faster will have a "string of pearls" look in which we see three or more position states of the moving orb.