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Martin and I ( amongst others ) have and still do image in Bortle 8 skies. Both with 8” newts at f/5 and f/4. Yes I use filters but have without and until recently Martin has not. Contrast is not the issue.
I will admit to a level of frustration yes. I’m trying to not to come across rude and my assistance is to serve no other purpose than to help a fellow astrophotographer.
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