there are many words to describe the attached image of the horsehead but because as Mike and the moderators remind us this is a family forum, the word rubbish will have to do.
I post it only to share my frustration at a massive stuff up..and as a warning to others!
This was on Sunday night..after the grand final. Focus was spot on..checked with DSLR focus. Polar alignment was great-drift aligned as best as can be expected. No moon. CLS filter to fight light pollution..got four 10 minute images of the horsehead and was absolutely chuffed with the way the raw images looked on the screen. guiding looked to be perfect, bit of coma around the edges but you get that anyway
My mistake? didnt take a dark frame that night.
It was much much warmer than any night this year. Result...massive noise. My dark master could not compensate, and nor could frequent passes through Neatimage.
So in the end this is a write off
This is resized down for posting but noise is still apparent.
Herein lies the lesson, at least for me..take a dark frame -one for every light-every single time!
and dont wait for the end of the night because temperature changes