I am not brand new at this hobby, I've been at it for a bit over a year now, plodding along in the Bortle 6 1/2 suburb.
But this camera is new to me, a ZWO ASI2600MM. I use it on my RASA 8 and for this session had the 2 in, Optolong RGB filters. 1 night for each filter.
The individual stacks looked ok in mono, with the usual, significant gradients of LP. But when I channel combined them in PixInsight, the blue and yellow seem too intense and out of control.
This is a cropped image of M63 that I tried DBE and PCC to get back to reality, but it failed.
I don't know what caused this problem, so I don't know what to try to do about it. Typically, my raw combined channels look more blandly white prior to PCC.
If your experience gives you some idea about what went wrong here or if this is somehow "fixable", please offer me a clue?
These were 2 minute subs, each filter getting about 150ish frames. Right now, it's a lot of work for nothing.