For the February Action Challenge. Go HERE to see more.

This showed up in Live View mode while experimenting
with reflected light in a shotgun barrel. It was not
visible to the eye. I had the barrel on a stand with
my monitor in the background. As I slightly rotated
the angle of the macro lens on the tripod this showed
up. I tried to capture it at f/22, f/14, f/11/, f/4 and finally
got it to capture at f/2.8. I guess the aberration
existed in a very shallow focal plane.

Heading to my new themed galley Red Light District.