F-Number & Spherical Aberration: Uncovering the Relationship

[russel.arnold]

how F-number of a lens and spherical aberration are related?

 

[davenn]

the faster the lens (or parabolic mirror in a telescope) the greater the probability of spherical aberration

f2 worse aberration than f5 which would be worse than a f10
there may be formula for working it out ... I don't know them ;)

Dave