It’s the kind of thing that AV personnel do when they are testing a microphone, amplifier, and recording gear. The rest of us test our equipment (musical instruments, surgical gear, endoscopes, astronomical equipment, etc.) using other procedures optimized for the type of equipment that we are going to use.
I spent a few hours last night taking pictures of M42, The Great Orion Nebula, for just that reason. I haven’t used either the RC10 or its Cannon 7D Mark II DSLR in several years, and I had not really tested the tracking accuracy of the mount with its new payload and much heavier counterweights. The image below is a composite of 102frames (50, 15-sec images; 52, 30-sec images). I have made better images of M42 than this one with the little 80mm astrograph, but the point here was to see whether I could achieve sharp focus with the RC10, and accurate tracking with the mount.
The stars below are round, and sharply focused. The nebula is visible if not as glorious as it appears in an 80mm f/5 astrograph.
Later in the month, I need to make images using the 130mm F/5 astrograph, full-frame Cannon 6D mark II DSLR, and narrow-band filter. The process of refinement continues.