Traité elementaire de l’objectif photographique | Étienne Wallon

A very complete treatise on photographic lenses. It starts with refraction and follows with formulas for spherical lenses, types of aberration, ways of correcting them and in the most practical part it cites the main families of lenses, their manufacturers, and goes down to the surface radii for some examples chosen. Great reference.

Digitized by Google, can be downloaded at this link:

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