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Originally Posted by janoskiss
My DGM narrow band is great for gaseous nebulae from my light polluted back yard, but not much else. Definitely no help with clusters or galaxies. I lose about 3 magnitudes to light pollution compared with darker skies 150 km away.
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There is a good reason for that, Neb filters are for nebula, they tend to tone
down unwanted star light, Dust disc of galaxies are mainly made of star
light so your filter will be useless on galaxies. A light polution filter like the
one I mentioned above will be better for you. they let in everything except
artifusal <-- Mmmmm... ummm err.... man made light ie street lighting...etc...etc...
regards,CS