Hi all,
I'm going to try my hand at HA imaging (QHY9 with QHY 2" FW / Tak FSQ106).
I'm not sure what HA filter I should be looking at. Currently I'm tossing up between the Baader 7nM and the Astronomik 12nM.
Does anyone have experience / opinions of these filters?
Should I be looking at something else for my particular setup?
Cheers
Matt