On top of all this good stuff, you need to consider seeing...
All the modern CMOS cameras with small pixels can make for some impractical resolutions (per pixel) with a larger scope when coupled with “average” seeing.
The limits at which you’re no longer capturing extra detail but just further characterising the blur can quite easily be reached with modest gear.
Of course, on a better than average nights, the results can be gobsmacking...it’s just that these nights are inversely proportional to your aperture
