Yep Bojan . My Pentax KS2 is set to give a little sensor shake every time I turn it on. This is because as soon as I started using it on a telescope I noticed the dust that is not noticeable on terrestrial shots. Only zoomed in to a blue sky.
Keep that reducer on.
So I had it cleaned by the Pentax service company when they did some other adjustments. Best $100 I spent on a $1000 camera. Problem with self cleaning for most of us is, it is always much better but not often as new.
Now it is easy to clean with a puffer when I check for a speck in images. Would a puffer also keep a modified sensor clean.?
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