Best RASA 11" V2 6200MM combo option for filters?

I just took delivery of a new RASA 11" V2, and as someone who likes to switch filters often for a variety of targets, I really want the full buffet of LRGB + SHO. I’m not an OSC kind of astrophotographer and don’t really plan on using one, so for me the ideal setup would normally be a filter wheel… but obviously that is not an option with the RASA.

I’ve thought about trying something like the miniCam 8, but I really want to stay full frame. I’ve seen some people using the Baader solution, but I wanted to check in with the group here and see if there’s anything newer or better that folks are using to swap filters in and out easily (cue nervous biting of nails over tilt issues).

Quick update!

I'm currently experimenting with (gulp) putting a 2600MM Pro with the 7-filter CFW on it (GASP)... it's the small one, everyone sit down.. and I know, I know – but I did some diligence here and I think it might just work. Here me out.

The wheel on my setup is about 150 mm in diameter, so yes, it does increase the effective central obstruction compared to the stock RASA 11 lens cell, which is around 114 mm. If you do the math on the collecting area, the bare RASA 11 behaves like roughly a 10 inch unobstructed scope once you account for the built in obstruction. With the 150 mm (ish) wheel in the beam, the effective collecting area drops to the equivalent of about a 9.25 inch unobstructed telescope. In practice that’s about a 15 percent hit in total light throughput, which translates to needing roughly 30 to 40 percent more integration time to reach the same SNR as a “clean” RASA 11.

The important part is that the focal ratio is still f/2.2, the image scale is still set by the 620 mm focal length, and my 36 mm filters are still large enough to cover the APS C 2600MM at f/2.2 without hard vignetting, because the filter clear aperture is bigger than the 28.3 mm sensor diagonal and sits fairly close to the sensor. What I’m trading away is some efficiency and contrast due to the larger obstruction and some extra diffraction from the wheel and cables, not the core “fast wide RASA” behavior.

So it’s definitely not the most elegant configuration, and it’s a bit of a self-inflicted handicap, but it’s not the disaster of turning an 11 inch f/2.2 into a 7 inch toy either. I’m effectively running something like a 9.25 inch f/2.2 mono astrograph. If the results look decent on sky, I may accept the loss in throughput as the price of getting proper LRGB/SHO out of this rig - which is something no one is doing (other than one youtuber I saw running a minicam8, which I did consider but I woulf rather loose a little in resolving power, then loose alot int he FOV.