Here is another go at Jases data
In images Plus
Digital Development of fits files as before
Pixel math green x 0.66 (same as mult R&B by 1.5) without blowing out either.
Convert each R,G&B Fits to three corresponding R,G&B Tiffs
In RegiStar
Align R,G&B Tiffs with RegiStar and simply sum.
Save as 16bit Tiff
In Photo Shop
Resultant colour tiff levels adjusted in PS
GradientXterminator used settings Coarse and Low
Levels adjusted again in PS
In Images Plus
Richardson Lucy for ten cycles 5x5
It is really important to carefully choose lower and upper levels when using RL enhancement otherwise you can enhance noise and introduce unwanted artefacts into the brighter stars.
Convert to JPG 90%
Large image 5.2MB
http://avandonkbl.bigblog.com.au/dat...0730075634.jpg
I think Registar does a better job of aligning images than any other method.
I could be imagining it but the faint backgroud stars are clearer.
GradientXterminator seems to have got rid of the gradient which often plagues wide fields.
Thanks again to Jase for letting us play with his data.
Bert