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Hi Anthony,
Thanks for the feedback. The final image did come out really well. I do like the 'hollowed out' look of that nebula. It's either very floral, like a rose, or like a tunnel, depending on how your eye focuses on it.
To make things more confusing, I set up the mount (only) with Ekos today and tracked a target near the meridian. On cue, the mount did a perfect meridian flip. Three tests, three perfect flips...
As Bill Stent said to me once - "Astrophotography is like Formula One. If nothing's broken, something will."
Which means that the problem lies somewhere else in my setup. Given that my Ekos setup is a couple of years old and has seen many configuration and hardware changes, I suspect there is a strange gremlin setting that's messing things up. When I get a chance I'll nuke the whole thing and rebuild it from scratch - and take a backup!
As for GraXpert, I think it does a pretty good job of removing the gradients and very good job of removing noise. I can't speak for any of the 'Exterminator' products as I've never used them.
Apparently the next version of GraXpert will do deconvolution, too.
Chers,
V.
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