Orthometer 35mm f4.5 – a pre-war wide-angle symmetric lens made by Carl Zeiss Jena during the Contax II era. It represents the origin of Orthometer-type lenses.
Serial number in the 2,260,000 range, manufactured around 1938. Distance scale in feet. Production is relatively limited, with an estimated total of approximately 1,750 units.

Despite its compact uncoated glass, it delivers detailed rendering. At maximum aperture, it exhibits pronounced vignetting, emphasizing the strength of the central image.

When using a Contax-to-Leica adapter, the lens can be mounted on Leica M bodies. However, interference with the rangefinder cam results in a front-focus tendency at close distances. From 3 meters to infinity, depth of field compensates for this issue.

On mirrorless mounts like E-mount, the lens performs without issues. Still, the true classic experience comes from using it with a Contax II or III camera.

Comes with an original Jena-marked front cap. A somewhat rare and collectible piece.

The exterior shows minor scuffs and some signs of use, but there are no dings or dents.
Fully overhauled in November 2024, with the aperture and helicoid movements finished to a smooth and refined feel. While focus testing was conducted using a ground glass, the rangefinder coupling is confirmed to work properly.

The lens exhibits very slight yellowing of the glass due to age, but there are no cleaning marks or haze, offering exceptionally clear optics. For an Orthometer—a lens often found with numerous cleaning marks—this unit stands out with its clean glass.

Sample images have been uploaded to the test gallery, showcasing a lens with both sharpness and subtle softness, delivering a richly vintage aesthetic.

Comes with the original Jena-marked front cap.