My camera is creating these dark blotches for some reason. I've confirmed it's not my filters, and there is nothing on the glass of the camera. These appear in every pic I take. The longer the exposure, the darker the blotch appears.
Any ideas?
MackM do you use an off axis guider? The large dark area at the top looks like something is in the light path. The other 2 look like dust motes, and will likely disappear when you calibrate with flat and bias frames.
Yes, OAG is being used and kind of suspected that for the one at the top but wasn't sure.
Thanks for you input!!
