Looks like a Takahashi air defece system

Also believed they were craftin' telescopes...😉

Let's see...different camera's, different filters, different gains, different targets...what could go wrong with your flats! 😂🤪  -john

What are you talkin' about? 😉🤣😇

I screw up often with the flats running just 2 rigs not 3! 🤪

I decided to only expose myself to all that effort when a streak of clear skies is ahead. I arragned camera angles, did calibration files for each scope and then collected photons with the the same set of parameters on each rig. But it was manageable contrary to what I did expect before :-) CS Andreas

You had a good plan. Well done.  I’m learning the hard way 🤪.

That's normally the way I do approach things, too! :-)

Sieht gut aus Andreas!!!
Da ist richtig was los!
Well done.
Gruß, Wolfgang

Danke, Wolfgang 👍 Ne kleine Choreo der Teleskope 😉 CS Andreas