Partner's Orb Picture

Some orbs can be caused by light reflection or dust. Katharine sent us this orb pic recenlty:

"I took this photo of my partner as he had just finished his university interview. When I looked back at the photos I
noticed the strange orbs floating around. I took another photo of the same spot a short while later and it came
out perfect. There is nothing wrong with the camera, and the batteries in it were brand new."