Bo,
Of all the solar cameras I’ve used the ASI 174MM is the worse for generating Newton Rings. Unfortunately this is well known.
The NR are always worst at Ha, I don’t have a major issue at CaK.
The tilter certainly works, but, it’s never 100%.
That’s why I went for an ASI 1600MM, it doesn’t seem to suffer half as much.
I’ll be OK when I can get it back in action...hopefully soon.
Ken
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