Well, it is definitely the Orion Ha filter.
Don't know what has happened to it. But I attached it to the ED80 last night. Very distorted star images coming through. Put the Baader filter in, perfect imaging.
It's funny. The Orion filter was working fine not 2 weeks ago. Maybe the 2yo or the 3yo got their hands on it or something... But it is stuffed...
Hey does anyone want to buy a used Orion ha filter?!
