Re: Matching lenses - distortion/Digression

[Eric Goldstein <egoldste@xxxxxx>]

Paul A. Lehman wrote:

> Although not about 3D, this reminded me of a story about a
> portrait photographer of the 1920's. Realizing that his lenses
> were not color corrected


Hmmm. I'd be interested in learning which lenses these were. It is
common mythology that back in the old days of orthochromatic b/w there
was no need to achromatize lenses; nothing could be further from the
truth. Pretty much from the get-go, lens designers were using crown and
flint glasses to achromatize, and chromatic abberation was very apparent
even in early emulsions (wet plates, etc). I think APO lenses began
being designed and produced by the turn of the century as a result of
Mr. Schott's new catalogue of glasses with a broader range of indices...


Eric G.