Hermann Desch

E. Leitz Photographic Patents by Hermann Desch

• 1961 APR 11 - WIDE-ANGLE LENS (9 / 7 - 8 / 6) with Heinz Marquardt, Otto Zimmermann and Eugen Hermanni (see above Fig.3 is 28mm f/2.8 Elmarit I and Fig.4 is 21mm f/2.8 Elmarit-M per Cavina)
• 1970 APR 29 - ROTATIONALLY SYMMETRIC OPTICAL COMPONENT COMPOSED OF AT LEAST TWO LENSES (with Helmut Marx)