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Thanks Ivo. I have just switched to v1.9 and OptiDev makes all the difference even with the default settings.

A case of star envy. Guess I need a better scope.

Very nice!

22 x iso200 x 30 secs under Bortle 5 skies preprocessing in Siril. This is a slightly pixelated png screenshot from Siril imported to ST. And while very likely the best focus my gear can do having picked out the stars in the trapezium. Is there a way to do a logarithm stretch in ST. For this kind of...

True. I haven't taken that many darks since cooling my old 450D. And while there is a tendency to think that darks are unnecessary with cooled data they are useful for removing hot and cold pixels- as few as 3 is enough for that purpose. On occasions a single dark has done the job. The Fuji is remar...

Quite right, Dietmar. And post processing is limiting apart from any data improvements that LENR may have to offer otherwise. I prefer to take darks and flats for longer exposures wirh the XT-1 with bias frames to calibrate only the flats. A failed experiment with an interesting twist.

Briefly. The images I took using long exposure noise reduction (LENR) which were then subject to flat division and by necessity bias subtraction were evidently clipped while the stacked image with background extraction in Siril "looked OK". I compared this to a stack calibrated traditionally in Siri...

Interesting approach. Looks great.

Lovely image and something I have not been able replicate. I'm not sure why anyone would want to edit out the green.

One of my favourites too happy kat.

The moon and weather is going to limit opportunities in the coming weeks. Next year, perhaps.