I've managed to collect about 1700 x 10 second subs of m42. 10 second subs because I am using an old Meade LX200R 8" in Alt Az.
I still had to throw away about 600 other images I had collected because even 10 seconds can be a bit much sometimes for 'Gary' as we call him.
I used SIRIL to process the images with a basic OSC and background extraction script (easy).
Photmetric Calibration, Remove Green Noise, stretch and export ready for GIMP.
In GIMP I used Shadows/Highlights to really bring out the faint details that would otherwise have just appeared black.
Processed a little with Topaz Denoise AI (pretty cool stuff).
Opened it in GIMP again and destroyed it down to less than 200kb.
Loving the ZWO 2600 MC P. (even with the oil leak twice already - no big deal to clean up and get going again)