8 second exposure, ISO 1600 (+2 stops in camera raw iirc), 3 image stack I think too... only managed to align the center not the edges haha.
I dont think stacking actually improved the results, I was just playing around at the time.
Shot on 30D + Olympus E.Zuiko 135mm f/3.5, from my back yard... anyway it was a random shot.. i just happened to choose a location of the sky to shoot with the 50mm prime.. and checked it out close up and saw a pink area and then centered it shot again.. then switch to the 135mm.
Anyway, hope to upgrade my equipment to something decent for long exposures
http://fc72.deviantart.com/fs24/i/20..._Ulfhednin.jpg