|
Gerard,
As you say the filter curve for the Astronomik looks as capable as the Baader UV-IR filter - I would agree with you.
I would look an either of these filters as a minimum for your Quark and 125mm aperture.
A Baader Ha 30nm CCD filter would be a more versatile filter and even more safe.
Just my opinion-I don’t have or use a Quark but have many other solar scopes.
|