Published in Autumn 2000 Zeiss Historica Journal
Author: Larry Gubas
See Page 10.
A biography of the lens designer who took the preliminary findings of Professor Abbe and created the Zeiss Anastigmats (Protar), PLanar, Unar, Tessar and Amatar lenses. These are the lenses that put Carl Zeiss Jena front and center in the field of photographic lens design.
To go to the Journal itself, click on the year 2000 in the first line above.