ResolutionPosted By Dale Conrad |
Basically the resolution of a scope is directly proportional to the inverse of the diameter of the objective. 0.5 arc seconds for 8in objective, 1 arc sec for 4in objective and so on. We are of course assuming the scope has a decent figure. The actual resolving ability is a function of the airy disk which is described by different criteria. The "resolution" of a scope really only becomes important if you are trying to separate multiple star systems.
In short, the finite resolution for a given diameter lens is a fixed commodity. The ability to focus different colors at the same place, color correction; and lack of aberrations, spherical, astigmatism, field curvature, are all factors in perceived resolution.
In short, the finite resolution for a given diameter lens is a fixed commodity. The ability to focus different colors at the same place, color correction; and lack of aberrations, spherical, astigmatism, field curvature, are all factors in perceived resolution.
