Zeiss Ikonta B (1929–1955)

A folding sheet of metal and glass that, when opened, becomes a precision instrument for 6x6 elegance

Overview

The Zeiss Ikonta B isn’t a camera you casually pick up—it’s one you inherit, restore, or hunt down with purpose. Introduced in 1929 as part of Zeiss Ikon’s four-model Ikonta line, the "B" designation specifically marked its use of 6x6cm format on 120 film, setting it apart from the 6x4.5 siblings in the family. While the original Ikonta models laid the foundation, it was the later Super Ikonta B—produced from 1937 to 1955—that became the marque’s flagship 6x6 folding camera, a mechanical masterpiece wrapped in leatherette and ambition. This wasn’t just another box with a lens; it was a statement of German optical engineering at a time when portability and image quality were beginning to coexist.

Owners report a satisfying heft in the hand, though exact dimensions and weight remain undocumented. The folding body collapses neatly, but the design demands respect—the faceplate, in particular, is noted as extremely fragile and prone to bending. When opened, the lens standard locks into place with a reassuring solidity, and the combined viewfinder and rangefinder system allows for precise manual focusing. The front lens assembly uses a helical mount, and focusing is achieved via a gear mechanism that couples the lens to the rangefinder prism, a delicate interface that requires precise alignment.

Specifications

Manufacturer	Zeiss Ikon
Product type	Folding roll film camera
Film format	6x6cm
Film type	120 film
Negatives per roll	11
Lens	Carl Zeiss Jena 80mm, f/2.8 Tessar
Shutter	Compur-Rapid
Features	Combined viewfinder/rangefinder, double exposure prevention
Includes	Self-timer

Key Features

80mm f/2.8 Tessar Lens

At the heart of the Super Ikonta B sits the legendary Carl Zeiss Jena 80mm f/2.8 Tessar lens, a design revered for its sharpness, contrast, and compact brilliance. According to collector consensus, the most sought-after examples are those fitted with this specific lens, which delivers exceptional resolution for a folding camera. The Tessar’s four-element configuration was an ideal balance of performance and size, making it a natural fit for the Ikonta’s collapsible design. Mounted in a helical focus assembly, the lens moves smoothly via a gear-driven linkage tied to the rangefinder.

Compur-Rapid Shutter with Synchro

The shutter is a Compur-Rapid unit, a reliable and widely respected mechanical leaf shutter of the era. It offers a range of speeds (exact values not documented), and includes flash synchronization—a notable feature for its time. The shutter is integrated into the lens assembly, allowing for consistent exposure control across the 6x6 frame. While no official speed range is confirmed in the fact sheet, Compur-Rapid shutters of this period typically spanned from 1 second to 1/400th, with B and T settings.

Combined Viewfinder and Rangefinder

Focusing is achieved through a combined viewfinder and coincident-image rangefinder system. The viewfinder provides frame lines for 6x6 composition, while the lower portion of the view includes a superimposed patch for rangefinder alignment. The mechanism relies on a gear that connects the lens focusing helix to a prism inside the camera body. When the gears are properly aligned, focusing is precise. However, collectors note a recurring issue: the rangefinder can become consistently misaligned across all distances, requiring careful recalibration.

Folding Metal Body with Fragile Faceplate

The camera’s body is constructed of metal, folding down into a compact form when not in use. The design prioritizes portability without sacrificing rigidity—when open, the lens standard is securely locked. However, the front faceplate is notoriously fragile and bends easily, a known weak point. Repair requires precision, and sources suggest having the proper small screwdrivers before attempting any disassembly. Finding a trustworthy technician is critical, as improper handling can worsen alignment or damage the rangefinder linkage.

Double Exposure Prevention and Self-Timer

The Super Ikonta B includes mechanical double exposure prevention, ensuring the film advances fully before the shutter can be cocked again—a thoughtful touch for careful shooters. Additionally, the camera is equipped with a self-timer, a feature included on both the B and BX models according to a 1953 Zeiss Ikon price guide. This adds versatility for self-portraits or long exposures where camera shake must be minimized.

Historical Context

The Ikonta line debuted in 1929, offering four models—A, B, C, and D—with the B model designated for 6x6cm format on 120 film. While early Ikontas used 6x4.5cm frames, the B model represented a shift toward square-format photography, appealing to those who valued compositional flexibility. The Super Ikonta B, developed from earlier models like the 520, emerged as the pinnacle of the line, produced from 1937 to 1955. It stood as Zeiss Ikon’s flagship 6x6 folding camera, combining high-end optics with sophisticated mechanical design during a period of intense competition in the medium format market.

Collectibility & Value

Original pricing from 1953 lists the Super Ikonta B at $236.00, with an additional $15.50 for a case and Eveready accessories. In the modern market, values vary significantly based on model and condition. The base Ikonta B (521/16) sold for $83 in 2020 (Condition B) and $33 in 2018 (Condition 3H), while the Ikonta 523/16 is estimated at $180–200 in average condition and $260–280 in very good condition. The Super Ikonta 532/16, a more advanced variant, fetched 222 Euro in 2012 (Condition B/A) and has listed on eBay for $349.99. However, the rangefinder’s tendency to drift out of alignment—evenly across all distances—remains a common issue, and repair is non-trivial. A detailed procedure exists for correcting misalignment, but the difficulty underscores the importance of buying from trusted sources or opting for professionally serviced units.