Magnification from focal lengths
2000 mm scope, 10 mm eyepiece
Example inputs. Not a list of telescopes.
Worked example
Do not look at the Sun through a telescope, finderscope, or eyepiece unless a certified full-aperture solar filter is fixed on the objective.
Magnification 200×
Exit pupil 1 mm
M = F_scope / F_eyepiece. Exit pupil = aperture / M.
Resolution form 0.58 arcsec
116 / aperture mm is one resolution form. It is not a forecast of seeing.