Photographica Pages

An online guide to collectable cameras and related stuff

25/4 Zeiss Topogon for Contax

The 25/4 Topogon, with caps and box.

The 25/4 Topogon lens was actually designed in 1933, but was not produced until 1950 by the East German Zeiss Jena.  The lens was a difficult lens to build, with thin highly curved elements. This is a very difficult lens to find.

Apparently a handful of these lenses were made before World War II, probably prototypes or pre- production lenses., of which two are now known (numbers 1503267 and 2540376). A few lenses (probably very late examples were marked Aus Jena, and some have the focal length marked 4/25mm.