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No. I did with a loan ST7 and Astronomik Hydrogen Alpha (Ha) 13mm, doubly ionised oxygen (OIII) and singly ionised sulpher (SII), just like you are doing today. I will probably get back into when the STL arrives (suppose to be this week, but expect next week now). I’ve ordered the Astronomik LRGB Typ II 50mm unmounted filters from Opt, though it was tempting to get a narrow band set. I’m intrigued by the Astrodon NIR (near infra red) filters.
I don’t have any results to show you; can only share my experience and those of others. Keep at it. Narrow band imaging is certainly more complex than standard RGB. Your data acquisition looks perfect with your current equipment set up. Perhaps collect more data if anything. I think you just need to take a little more time on the processing. I’m not taking a shot at you, just offering some guidance. I admire people who embark on such adventures of CCD imaging.
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