Thanks anyway Alex.
That was my usual method for bright objects but it does not work so well for small faint things. Long exposures work better but there are some very strange very fine , non pixel , needle like artefacts in the dng file visible at 100% at 5 minutes along with dust on the mirror.
An ice pack on the camera. .?
Focus stacking programs can input and output adobe rgb dng but they can not cope with star fields.
Might have to take your path and buy Sh cooled Astro camera. More stuff.
Quote:
Originally Posted by xelasnave
Great effort but I cant suggest anything to help with your concerns other than short subs and 100 s of them☺
Alex
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