Baig said correcting spherical aberration improves contrast sensitivity but decreases depth of focus. Increasing spherical aberration will expand the depth of focus but also decrease visual quality.

Transition metal diborides (TMB2) are materials of choice for the applications in hypersonic vehicles and scramjet engines ...

Spherical aberration tends to look like a combination of conventional blur and radial blur, often combined with some sort of chromatic aberration. Most compositing tools will let us duplicate a layer, ...

Correcting this "spherical aberration" is costly and complex, meaning that only a select few scientists and companies possess electron microscopes with atomic resolution.

This article was originally published with the title “Spherical Aberration in Thin Lenses” in Scientific American Magazine Vol. 129 No. 2 (August 1923), p. 94 doi:10.1038 ...