Agfa Karat (1936–1956)
At nearly 1.5 pounds, it feels dense in the hand. Small, heavy, and built to last.
Overview
The Agfa Karat isn't one camera. It's a run of strut-folding 35mm rangefinders that stretched from the 1930s into the 1950s. Agfa (Aktiengesellschaft für Anilinfabrikation, later Agfa-Gevaert) started the series in 1936 as a direct challenger to the growing field of 35mm folding cameras, most notably the Kodak Retina. The Karat changed a lot over its run. It started as a basic fixed-focus folder and ended up a coupled-rangefinder machine with a high-speed shutter and fast lenses.
The early models, like the Karat 6.3 ArtDeco and Karat 4.5, were modest tools. They used proprietary Karat cassettes, a film system derived from the 1927 Ansco Memo design, and had simple lenses like the Igestar 50mm f/6.3 or Oppar 55mm f/4.5. Shutter speeds topped out at 1/125 or 1/300, depending on the model. Viewfinders were basic optical types with no rangefinder coupling. Then the Karat 36 arrived in 1948 and dropped the proprietary cassette for standard 135 film. The final model, the Karat IV (1954-1956), was the peak: a compact folder with a Prontor-SVS shutter, a coupled superimposed rangefinder, and the option of 50mm f/2.0 lenses from Schneider, Rodenstock, or Agfa's own Solagon.
The Karat 36 and IV weigh approximately 680 grams (almost 1.5 lbs), which is a lot for a folder. It's not a pocket camera in the modern sense. It has metal struts, a rigid bellows assembly, and a lens mount that retracts into the body with no clamshell door. The film advance lever pulls toward the user in a front-to-back motion. The mechanism is non-ratcheted, so if you miss a full stroke, the shutter won't cock. There's no exposure meter, no battery, no automation. Aperture, shutter speed, and focus are all set by hand.
Collectors note that the Karat series, particularly the f/2.0 variants, was sold in the U.S. under the Ansco brand as the Ansco Karomat. The 1954 price for an Ansco Karomat/Karat 36 with f/2.0 lens was $164.10. That was a significant sum at the time, and it put the camera in the same class as the top-tier Retinas. The price covered the lens and a full feature set: flash synchronization (X and M), a PC sync terminal, a cold shoe, and on later models, a self-timer marked by the "V" setting on the "M X V" sync selector.
Specifications
| Manufacturer | Agfa (Aktiengesellschaft für Anilinfabrikation, later Agfa-Gevaert) |
| Product type | strut-folding 35mm camera / collapsible 35mm fixed-lens rangefinder |
| Film type | 135 (35mm) standard cassette (for Karat 36 and IV) |
| Lens options (Karat 36/IV) | Solinar 50mm f/2.8 (4-element), Solagon 50mm f/2.0 (6-element), Rodenstock Heligon 50mm f/2.0 (6-element), Schneider Xenon 50mm f/2.0 (6-element) |
| Shutter (Karat 36/IV) | Synchro-Compur or Compur-Rapid leaf shutter with speeds B, 1 – 1/500 second |
| Flash sync | X and M synchronization |
| Sync selector | "M X V" on shutter for Flashbulb (M), Electronic (X), or Self-timer (V) |
| Weight | Almost 1 1/2 lbs (680g approx.) |
| Film advance | Non-ratcheted lever, pulled from front to back (towards the user) |
| Viewfinder | Combined optical viewfinder with superimposed/split-field rangefinder |
| Focus | Coupled rangefinder, 3′ (1m) to Infinity |
| Filter size | 29.5mm (accepts push-on 32mm hoods) |
| Exposure Meter | None |
| Battery | None |
| Flash Mount | PC Sync terminal and Cold Shoe |
Key Features
Collapsible Strut-Folding Design with Internal Lens Retraction
The Karat's folding mechanism is simple. Many folders rely on a clamshell door to protect the lens. The Karat uses a strut-folding system instead, where the whole lens panel retracts straight back into the body. The struts lock firmly when extended, and the bellows sit behind a metal frame. That removes the need for a separate lens cover and adds to the camera's solid feel. When the camera is collapsed, the film advance is mechanically locked, which prevents accidental advancement during storage.
Front-to-Back Film Advance Lever
The film advance lever works in an unusual direction: it's pulled from front to back, toward the user. On the Karat 36 (first version) this motion is linked directly to the shutter cocking mechanism, so a full stroke is required to reset the shutter. The lever is non-ratcheted, so partial cranks won't advance the film properly. You have to make a deliberate, full pull every time.
Combined Optical Viewfinder with Superimposed Rangefinder
Later models, especially the Karat IV, have a combined viewfinder and rangefinder in a single window. The rangefinder patch uses a superimposed image rather than a split-field design, which makes focus confirmation smoother for some users. The patch is bright and clear when aligned, though its size and brightness depend on the lens's maximum aperture, a limitation common to all coupled rangefinders of the era. The viewfinder is fixed, so there are no framelines for different focal lengths, but the 50mm framing is accurate and uncluttered.
Greenish Lubrication Prone to Stiction
Owners report a recurring issue with a "greenish" lubrication used in some Karat models, particularly those from the late 1940s and early 1950s. Over time this grease can harden and cause sluggish operation in the shutter, aperture blades, or focusing helicoid. It's not universal, but it's common enough to be a known maintenance concern. A full CLA (clean, lubricate, adjust) by a technician familiar with vintage Agfa gear often restores proper function. Check shutter speeds and aperture operation before buying.
Proprietary Karat Cassette to Standard 135 Transition
The early Karat models (pre-1948) used a proprietary film system: the Agfa Karat cassette. This was a dual-cartridge system that transferred film from a supply side to a take-up side without a spool, derived from the 1927 Ansco Memo design. It was clever but inconvenient, and it isolated the Karat from the growing standard of 135 cassettes. The Karat 36, introduced in 1948, marked a turning point — it was the first in the series to accept standard 135 film, making it far more practical for everyday use. This shift aligned the Karat with the future of 35mm photography and broadened its appeal.
Prontor-SVS Shutter with M X V Sync Selector
The Karat IV introduced the Prontor-SVS shutter, a leaf shutter with speeds from B to 1/500 second. It includes the "M X V" sync selector, a three-position switch that sets the flash mode: M for flashbulb, X for electronic flash, and V for self-timer activation. Putting a self-timer in the sync selector is unusual. The shutter is reliable when serviced, but it lacks the refinement of the Compur or Synchro-Compur units found in earlier high-end models, a trade-off for cost and space.
Historical Context
The Agfa Karat series began in 1936 as a response to the growing popularity of 35mm folding cameras, particularly the Kodak Retina. Agfa's U.S. subsidiary had merged with Ansco in 1928, which led to the Karat being sold under the Ansco Karomat name in American markets. The early models used proprietary Karat cassettes, a system that limited compatibility but allowed Agfa to control the film experience. The Karat 36 (1948) switched to standard 135 film. The Karat IV (1954-1956) was the final and most advanced model, with a coupled rangefinder, flash sync, and fast f/2.0 lens options. The series is widely regarded as a worthy competitor to the Kodak Retina IIIC/IIIc, with comparable optics and build in a slightly heavier, more industrial form.
Market Value
┌──────────────────────────────────────────────────────────────────────────┐ │ AGFA KARAT Nov 2026 │ ├──────────────────────────────────────────────────────────────────────────┤ │ High $873 Latest $90 │ │ Median $76 Trend — │ │ Low $29 Volume ~15/mo │ ├──────────────────────────────────────────────────────────────────────────┤ │ $900 ┤ │ │ │ . │ │ │ │ │ $514 ┤ . . . │ │ │ . . │ │ │ . . │ │ │ . . . . . . │ │ $0 ┤....... . . . . ........... ....... ....... . . ...... .│ │ ├─────────────────────────────────────────────────────────────────│ │ vol │▂▁▁▂▂▁▁ ▁ ▁ ▂ ▃▁▂▂▁▃▁▂▃▃▁█▁ ▂▃▁▃▂▁▁ ▁▁▃▄▅▂▃ ▁ ▁▁▁ ▁▁▁▁▁▁▁▂ ▁│ │ └─────────────────────────────────────────────────────────────────│ │ 2026-02 2026-05 2026-08│ └──────────────────────────────────────────────────────────────────────────┘
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Recently sold on eBay: $37–$214 (median $76, based on 91 completed sales, past 12 months)
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