Extremely rare Elmar in excellent condition, Compur-shutter (code OBDUL) LITERATURE Leitz Photo Objektive, Liste Photo 7188c, April 1933, p. 6. Leitz company produced photographic lenses even before Oskar Barnack designed the UR-Leica in 1914. Even after the introduction of the Leica, Leitz continued to supply photographic lenses for other companies, some are extremely rare. The lenses were offered each in different mounts, of which one always was mounted in a Compur-shutter. The 7.5cm Elmar lens seems to have been produced in a very small number only