Hi Allan, thanks for the reply, the files are FITS files and captured using Prism10. Focus was spot on, I used the autofocus routine in Prism which takes a series of shots intra and extra focus and measures HFD and sets focus position to best HFD position, not yet set up temp compensation.
I don't have DSS to try but up till now have had no problem with PixInsight.
By unuseable I mean the files, when taken into PI, are fine as shown by the above image, but if I callabrate the images before any other processing then they go dark with a few bright stars showing, and STF function will not change them to be able to see what signal is there. This issue makes them unuseable as STF is needed to see what happens during other processing steps before HT is done.
Any tips greatly appreciated.
I quite like Prism 10 for telescope, focus, guiding, imager, plate solving and observatory control (when I can eventually add a dome or motor for ror), I don't plan on using the processing capabilities as I like PI for that.
Using a single software package greatly simplifies things in my opinion, as opposed to using multiple packages theat need to play nice together.
Regards Shane
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