thank you for kudos. Which I owe to to you all other comet hunters as well
Just a few notes on technical details (a more detailed description I could give for those interested):
The whole observatory and schedule can be fully controlled by CCD Commander, which speaks to MaximDL for exposures (and even cooling of the CCD, an FLI ML-8300) at the 8"/2.8 and starts the vbs script speaking to the Imager window of SIPS for the Moravian G4 exposures. The script looks for exposure start of MaximDL, and within 1 second starts the G4.
The 12"/4.2 has the Moravian G4 attached to it, which has bigger pixels, but due to longer focal length a scale of 1.44"/pixel vs. 1.99"/pixel für the 8". Filters can be set independently. Maximum bandwith is with Luminance for the 8", but at the 12" I preferred a Clear glass (just to avoid refocus) for maximum detection of weak radiation (the sensitivity of the KAF-16803 beyond 700 nm up to 950 nm is still good, so I even invested in a astrodon I'2 filter for a possible "4th band below RGB"). The 8" is piggy back mounted on the 12", which is fixed on a ASA DDM85 (controlled by Autoslew). No tracking or guiding is used.
I process all exposures with PixInsight (PI). The star alignement rescales images to the reference image (preferably of the 12"G4), so slightly increasing the 8" images in pixelcount and resolution (virtually).
A second 0.8m-Schmidt to mount in parallel to the first is a great idea ... but I think Erwin did kind of a joke when speculating on that. And my idea of parallel exposures "on the same mounted optics" is not that new, somehow common for many years, and realized with different camera controlling software. Due to CCD Commander requirement, I had to stick to SIPS for the G4, however. That was the challenge.
Of course, it would be a great honour to get imaging time on a 0.8m-Schmidt which Erwin can use. But I think he does so as a professional. And the rules of the TAC (Telescope Allocation Committee) must be strictly followed to, not to squander valuable research time
Kind regards / Freundliche Grüße