Zeiss Ikon I1932

History

Zeiss Ikon introduced the Contax I in 1932, three years after the commercial launch of the Leica II, and in direct response to the market Barnack's camera had created. The Zeiss engineering team, led by Hubert Nerwin, designed the Contax around different priorities: a longer rangefinder base for more precise focus at distance, a bayonet mount (rather than screwmount) for faster lens changes, and an unconventional vertical cloth shutter with metal guide rails rather than the Leica's horizontal curtain design.

The Contax I was produced in at least three or four variant forms across its production run from 1932 to approximately 1936, with each revision addressing practical shortcomings of the previous version - particularly the shutter and the rangefinder coupling mechanism, which were both prone to issues in early production.

The Contax II and III, launched in 1936, represented a near-complete mechanical redesign: faster top shutter speed, a combined viewfinder-rangefinder eyepiece, and substantially improved build quality. The Contax I was thereafter regarded as the earlier, rougher-edged founding model.

Production ceased with the disruption of World War II. Post-war, the East German VEB Carl Zeiss Jena continued a parallel lineage via the Kiev rangefinders (based on tooling taken to the Soviet Union), while the West German successor developed the Contax IIa and IIIa in Stuttgart.

Why It Matters

The Contax I is significant not for being a great user camera - it is difficult to service, has pre-war optics whose condition is now entirely luck-of-the-draw, and was mechanically surpassed by its own successor four years later - but for being the founding artifact of a lineage that ran, in various forms, from 1932 through the Contax G2 (1998) and arguably to the Contax-branded digital collaborations of the early 2000s.

It represents Zeiss's assertion that optical quality and engineering ambition could rival Barnack's minimalism. The Contax mount's optical register allowed Zeiss to design lenses - particularly the Carl Zeiss Sonnar designs of the 1930s - that were among the finest available on any camera system of their time. The 50mm f/1.5 Sonnar made possible in 1932 by the Contax's bayonet register was a landmark lens of the era.

The camera also illustrates the pre-war German camera industry at its most competitive and innovative: a period when Dresden and Wetzlar were the world centers of precision optical manufacturing, before the war and subsequent division of Germany permanently disrupted that ecosystem.

Lenses & Accessories

The Contax I uses an internal bayonet mount with a relatively long flange distance, designed to accommodate the rear element of the early Sonnar designs deep inside the body. Lenses from the original Contax I era include:

• Carl Zeiss Jena Tessar 50mm f/2.8 - standard lens option
• Carl Zeiss Jena Sonnar 50mm f/1.5 - fast standard, optically notable for its era
• Carl Zeiss Jena Sonnar 85mm f/2 - portrait telephoto
• Carl Zeiss Jena Sonnar 135mm f/4 - telephoto

Contax I lenses are not interchangeable with Contax II/IIa/III/IIIa lenses without adaptation in all cases, due to differences in the bayonet implementation across generations.

Modern use of Contax I lenses is specialist territory: adapters for contemporary mirrorless cameras exist but are uncommon and expensive.

Sample Photographers / Notable Use

The Contax I and its contemporary Zeiss Sonnar lenses were used by professional photographers throughout the 1930s, particularly in Germany and Europe, as a serious alternative to the Leica. Specific attribution to the Contax I (vs later Contax models) is difficult to verify in most photographic histories.

References

• Camera-Wiki: Contax I - variant documentation and technical specifications
• Wikipedia: Contax - brand history from Zeiss Ikon through Kyocera era