I found some spots on some images that looked a lot like sensor dust. So I opened my M8 up and did the rocket blow thing like I'd do with any other sensor.
Then for a test, I shoot into a white drape massively over exposing shooting at 1.4 1/60th ISO 160. I expect a white image except where sensor dust would be.
Instead, I got this:
Now I do not have a UV cut filter on my lens, so I don't know if that's causing this? Or do I begin to panic?
I've seen nothing like these artifacts in any images, but needless to say, I'm a bit concerned.