I was considering a black moonlite because I really love my moonlites but even that would be more than I paid for this scope
I'm not a big fan of forcing an instrument to do something it wasn't designed to do. If your intent is astro-imaging, I would consider another instrument, a more modern apo. I have a William Optics GTF 81 that is fabulous for off axis images - flat field - and uniform illumination on a 35mm format camera.
Broad band imaging with the Renaissance will be compromised by chromatics, but narrow band should be ideal with constant refocusing between filters. Doesn't sound like fun to me.
The Renaissance was designed before apos were generally available. Al Nagler teamed a long focus objective with a focal reducer type doublet in back (a Petzval lens) to offer a well corrected wide field instrument with relatively little chromatic aberration. I've used my Renaissance at 500x - great images! Visually the color is not that bad at all. But at the same time it's a lot longer and heavier than a typical modern apo with ad on field corrector of similar fl.
I think the Renaissance is a great visual scope. Cleaned up the brass looks great in the garden and living room too!