Hello all- here lies a lesson in framing your pics!
Just spent two nights on IC 4628-The Prawn.
It looked ok on the computer.
So stacked L:Ha:R:G:B as 105min/75min/50min/34min/30mins.Total over two nights 4.83hrs.
Calibrated and stacked and taken with MaximDL.
Colour calibration ratio in Maxim stack L=100%, R/Ha=1.8/ B=0.8/G0.8-this was done as an aesthetic eye ball as by the time I thought about it all the G2V stars had clouded out.
So I got a lovely picture of the chin of a prawn- QSI 683 and RC8!
Played with the histogram on the prawn......
Wide is same area with some nice clusters -cooled DSLR 300sec at 800 ISO- 140 minutes at 300sec subs. (Canon 60da, Tak FS60C, Tak reducer)
At least it was a good exercise in getting Maxim to point in the same place on consecutive nights.

Thanks for any comments, and advice.
Graz from Taz...