The 600 is certainly producing the goods. The latest CMOS generation really looks likely to give CCD a decent shake, at least for asthetic astro imaging rather than perhaps more serious science. My ASI2600 is certainly a quantum leap ahead of my ASI294.
I am actually thinking of heading down the NB filters in front of an OSC route in preparation for hopefully getting a mono camera sometime in 2021. It would allow me to spread the spend out considerably.
It is certainly not ideal but people must be doing it. I use Astro Pixel Processor for stacking and a recent update brought specific debayer algos for various different NB filters, and I think even ones to debayer for duoband filters and save the files for the two band passes seperately.
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