I'm seeing a number of beautiful images of nebulas even from light poluted areas using HA filters. Could enyone explane or provide a reference to a site that describes the differences in these filters? Particularly, which are most effective under extreme light pollution, with price being a consideration too?
HA FILTERS 3, 4.5, 6, 10, 13nM?
Started by SJJindra, 04/05/2004 09:46PM
Posted 04/05/2004 09:46PM
Opening Post
Funding Member
