After a lengthy break from AP due to the persistant clouds in summer over Melb, and then trying to sort out some alignment issues, I finally got some photo time last night.
The photo below is 18 x 40 secs with bias, darks and flats. Stacked with DSS and quickly (levels and curves only) processed with PS2. The end result has a dark line horizontally about one third down from the top. Re -stacked with DSS and processed with GIMP and came up with the same result. I can't see any lines on the RAW subs.
Any idea what is causing the line?
Clear skies
Rod
