At the beginning of November there have been a few clear nights here at my location, which I used to gather some data of the Cave Nebula. My intention was to acquire broadband- and NB data in order to combine them using the NB Accent Module. But the quality of the broadband data was unusable, so I decided to process NB data only and to layer in RGB stars of one night:
Please find technical details on AstroBin:
https://www.astrobin.com/rc1d0z/
The processing in ST was as follows: Compose module, open NB data as Bicolor OSC/DSLR (HOO processing). I had no luck using OptiDev in this case. Too much noise was introduced, no matter what I tried. The data is probably too weak. FilmDev gave a more pleasing result. I lowered Gamma to 0.92, which brought out the main arch of the Cave nicely. Nothing special about using the Colour Module – no need to do independent non-linear stretching per channel

The loss of four nights of gathering broadband data was quite annoying, but in the end I think I got a relatively ‘natural’ looking result.
As always: Comments welcome

Best regards, Dietmar.