I am planning to purchase the ZWO ASI 1600 mm-pro to use with both my f/4.9 Newt and mostly with my f/8 GSO RC8. The mount is a more than capable CEM60, and I'm running SGPro for acquisition. I've done the research on pixel size to focal length, and this combination looks to work fine. Now, my questions are:
Will I need to use an IR/UV cut filter in addition to the NB filters? My instinct says no, because the NB filters will already block IR and UV, but what about with LRGB?
I think 1.25" will work for the RC8, but 31mm would be better for the f/4.9 Newt. Question: 1.25" or 31mm?
What brand(s) to go with for filters and/or EFW? Price-wise, ZWO offers the whole shebang in a kit, and who doesn't enjoy saving some money? But, I am concerned about the halo effect of some of the 1.25" filters from ZWO that I've heard about. Astronomik is out of my $$ league. Baader? IDAS?? I just don't know...
I know, I ask a lot of questions here. I can only say that it's a fool who does not take advantage of opinions and thoughts of those with more experience. Thank you all for your help, again!!