David, I don't know what they are, my ASI has these
whatever since I received it. And I gave up to clean. I tried all. And when I say all, I want mean really ALL !
Some times I think that I can move them on surface. Some times they stay there forever. I lost more time cleaning the ASI sensor than using the camera. Now I use it only as guiding camera.
I don't like ASI camera to imaging. It is not a good camera to do this task. I never will buy their products, again. I
hate ASI!
