Peter,
That's fantastic. I read your comment about the prism problem particularly on images like this, but I certainly wasn't expecting anything as good as what I've just seen. What problem?
I have asked Phil to reload those dark flats you kindly made available, as there was an archive header error on the unzip. I've only ever encountered that once before and then it was fixed by Phil reloading the zipped file.
Thanks for sharing.
Kind regards,
Ray