Well I might have got it tonight. Still not exactly sure.
I think a few more backup results might confirm it.
Far better seeing tonight, more frames and two sets done,
one with the ccd down to 11C and one at 25C ambient.
1st image is the field with a curve for the nebula.
2nd image is a crop/curve/sharpen to best separate the stars.
3rd is the HST image for comparison.
One thing that blows me away is how Rolf could get something
with a 10" scope and an 8bit(12bit?), 5.6um pixel colour webcam with NO filter for IR!
Mine is a 16 bit cooled DSI II chip with 8.6u pixels, more sensitive mono
chip on the 12" Newt with a Baader filter.
He's certainly doing something amazing in his routine.
Steve