Now the
Rothney Astrophysical Observatory
Baker-Nunn telescope was never designed for colour imaging (the imager is buried deep inside the telescope). So to do colour, we use theatrical gels large enough to cover the entire 0.5m aperture. We then get the R, G, and B channels from that. (eye contact in one pic)
@astromecanik would beat slewing the telescope to where we can get to it on a scaffold to change the filter!
I have visions of me falling out the slit...