Quote:
Originally Posted by Camelopardalis
But isn't this just an illusion? That the scope lacks the resolving power to actually see the disturbances in the atmosphere?
Don't get me wrong, I  refractors... |
\
I know what you are saying that a long focal length scope will show the disturbances better. But as the article from Roland shows, refractors have tighter stars. Also better contrast as the secondary mirror robs contrast.
So tighter stars and better contrast = the better view albeit at a wider field look.
Also less effect of thermal currents and boundary layers.
Greg.