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Thanks Martin.
Good to know your procedure.
I do use flats and darks on some images. If they work then great, if they don't I don't stress about it as there is more than one way to arrive.
I should get one of those panels. Not that expensive for a 110mm but getting up there for a 17 inch!
I do notice some odd effects using bias though. I'll make a fresh lot.
I basically have been only using 2 exposure times - 300 and 600 seconds.
The rain noise I have only seen once. It may have been diminished in the qhy firmware, I know the horizontal lines issue is reduced in QHY's firmware.
I imagine these are only problems if there aren't enough subexposures to get a decent stack and let maths get rid of the random noises by dithering.
I have some colour for this image, not sure if its enough exposure time though.
Greg.
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