N.I.N.A images are not showing colour ( with ASI 071 MC Pro camera)

[Skipper Billy]

1 hour ago, Gan said:

That's great. Thank you Skipper Billy. I had a good couple of hours of clear skies last night and took more images of M 42 with NINA and simply took the subs in FITS file. They came out in colour  when I processed in GIMP. However, I have a feeling software like Pixinsight may bring out more out of it. I am not very good at post processing and heard that Pixinsight is a bit more complex programme with a steep learning curve. Just not very confident at present to try even the trial version.

Pixinsight is extremely powerful but fairly complicated ie its a steep learning curve.  I haven't used GIMP but understand that it is very like Photoshop - many people produce extraordinary images with it. 

Keep at it and shout out if you need help processing it - it sounds like you might have decent data to work with now ???