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Funny you're asking about filters today. Just last night. I was doing a comparison test of the different filters I have (IDAS LPS-HEUIBII/D1/D2/V4/NB2-PM/NB3-PM, STC DuoNarrowband). Despite being quarter moon, I did take them after it set.
I don't think my streetlights had changed to LED yet. As you can see the D2, has a greenish tinge.
Hope this helps you.
Helix Nebula
Takahashi µ250CRS (2500mm focal length, F10)
CentralDS Astro A7S (modified cooled A7S - sensor temp approx -5 to -6C)
ISO2000
300 sec subs
Approx Bortle 5 skies (Perth central suburbs)
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