Hello everyone
Switched to a repro now of M17.
The original is attached, and the new version is here:
http://www.martinpughastrophotograph...s/M17SHOv1.jpg (1.4Mb)
Exposure times were 6:1.5:5 hours. This nebula seems to boom in SII, so on the repro, I combined the Ha and the SII to create a synthetic luminance.
hope you like it
cheers
Martin