M1 "The Crab Nebula" (HST palette) reprocessed

[Paramount]

Hi All
I posted an image of M1 in HST palette a few days ago, but the image was very noisy and overprocessed so I have had a go at reprocessing it, I think this looks much cleaner and more detailed but would be interested to hear peoples comments. This is an extreme crop of the full widefield image as it was taken with my TMB 115 and H36 camera. The full widefield shot can be seen on my website http://www.imagingtheheavens.co.uk (http://www.imagingtheheavens.co.uk/) in the nebulae section of the image gallery along with the original versions for comparison, just as a reminder the details are as follows
TMB 115 f7
Paramount ME
Starlight Xpress H36
9x10 minutes Ha
12x10 minutes OIII
5x10 minutes SII (subject was too low in the sky for more subframes)
All exposures were unguided
Colour combined in Maxim DL with 1:1:1 weighting for RGB
Thanks for looking (again)
Best wishes
Gordon

http://www.imagingtheheavens.co.uk/USERIMAGES/M1croprepro.jpg

[jase]

A vastly improved version compared to the previous Gordon. Colours are more toned down allowing the exquisite details of the filaments to come through. Background is a little noisy, but you're certainly on the right path. Thanks for sharing this repro. Well done.

[Paramount]

Hi Jase
Thanks for the help, all I did with the reprocess was be a bit more gentle in the initial stages and I used some very slight reverse curves and noise reduction to reduction to help reduce it to a minimum, I did have a go at further reducing it but I felt the rest of the image started to suffer so this was a comprimise, more subframes will certainly help, as well as flats when I get around to them
Best wishes
Gordon

[Garyh]

I agree with Jase, much improved with nice detail in the PN!
Well worth the effort of a reprocess :thumbsup:

[Kal]

Definately an improvement in the reprocessed version, so much more detail is seen!