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Thanks all for your help. Have taken my first NB shots, Tarantula, with 8" F4 newt, ASI1600. Took a while to sort out best gain/exp for this camera. Have dark flats, flats & lights (for all filters) and darks! Here's ~5 hours each of Ha, Oiii, Sii. In Pixinsight, integrated with WBPP, mure denoised, sharpened, star-removal, then a simple SHO combination followed by gradient removal & a stretch.
I'll have to learn NB processing. I haven't used Pixinsight for 6 months & have used WBPP for first time to reduce confusion. And there's a lot of new(ish) processes including gradient correction & generalised hyperbolic stretch which I've tried to use here. I have RGB for stars which I'll sort out later
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