Haven't seen anyone else talking about halos from the new Askar colormagic D1 and D2 filters, so I figured I'd start a topic about it. I know Oiii is notorious for having halos on many popular brand filters, but Askar does market these as not having halo issues. These aren't quite as bad as my first l-extreme filter, but they are definitely there. I've used the IDAS NBZ (after the l-extreme halos) for almost two years and never once saw a halo. I reached out to Sharpstar to see if they have had any other people showing issues.
I used two different scopes to try and rule out internal reflections or other issues, my Askar 65phq and my MN190. The California Nebula was with the 65phq, and the Christmas Tree Cluster with the MN190.
Edited by j21blackjack, 05 February 2023 - 02:03 PM.