Posts Made By: Joe Cannavo

Only wrt observing - I.e. setting aside, cost, hassle et - the limiting factor with bigger and bigger scopes for me is that higher and higher magnification is needed to utilize the full aperture (I.e. avoid exit pupil stopping down aperture). And of course mag is seeing limited as you mention. And similarly smaller smaller deep sky targets and details become become necessary to preserve the advantage of aperture. With this in mind I’ve always considered that somewhere around 40 inches a ceiling is reached as at 6mm exit pupil (for my 64 yo eyes) you’re running at 160x.
Joe