While I am watching the progress here it seems already to turn out towards the "big, fast" scope. Hehe 🚀
Well, I have a few options on the table with the respective costs. My favourite would be a 20" Planewave system with a 0.66x reducer. Effectively we'd end up with a resolution of 0.81" per pixel, 2280mm of focal length (f/4.5) and an area covered of about 55'x55'.
Would this qualify as big and fast?
Another option would be a very fast 22" f2.6 (!) primary astrograph. The combination with a CMOS like the GSsense4040 (like with an 16803 CCD) would lead to a FOV: 1.46° x 1.46° and a Resolution: 1.28", which is a tad undersampled.
We could use the QHY600 CMOS with it, leading to a FOV: 1.43° x 0.95° and Resolution: 0.54"/pixel. Pretty close, but with a good sampling here.
The issue with this second system is the cost: It would end up costing about 60% more than the Planewave, and probabily we would need to raise the hourly rate at least for this one scope. I am also not sure if bigger is always better. Definitively one would need way less total exposure time with the fast system, so that for a given target we would end up with less costs for the users. Also, it would be a dream for all asteroid hunters out there who wish to go very deep.
Any thoughts about this guys?