Big Oval Holes in the Orbs

Photo date: December 27, 2019. Photographer: Mark Mahin.

I took the photos below while photographing only ordinary drops of pure, clean water falling in front of a black featureless background.  On this day one of several repeating patterns I got was the one shown below, consisting of a notch on the left and a big oval hole on the right.

Below are other examples of this pattern:

Below is another  example of this pattern (one with a good example of a see-through hole):

 Below is another  example of this pattern:

Below is another  example of this pattern:

 Below is another  example of this pattern:

 Below is another  example of this pattern:

Below is another  example of this pattern:

Below is another  example of this pattern:

Below is another  example of this pattern:

Below is another  example of this pattern:

Below is another  example of this pattern:

Below is another  example of this pattern:

Below is another  example of this pattern:

Below is another  example of this pattern:

Below is another  example of this pattern  (and now there is an additional feature on the top right):

At the 8:34 mark of the video below, you can see my camera viewfinder as I photographed exactly this anomaly.