Another Air Orb Way Too Big to Be Dust

Picture date: October 10, 2014. Photographer: Mark Mahin.

This  indoor photo of a featureless wall shows an air orb with a height of 416 pixels. This means that the orb occupied 25% of the original picture height (the picture had a height of 1704 pixels). This size is completely incompatible with the "orb zone" theory which maintains that orbs are merely dust. Those who have advanced such a theory have admitted that according to such a theory, orbs should never be larger than about 10% of the original height of the picture (and when you raise heavy dust to photograph dust orbs, you don't actually get dust orbs larger than about 5% of the original picture height).

Dust level: 189/4 (Fair).  Reflective surfaces nearby: none.  No flying insects observed at this location in previous 40 days. No orbs shown in photos taken at same location from same angle soon before and soon after this photo was taken, which argues against any dust explanation. No artificial light was involved in the photo area except the camera flash.