Biotar 75mm f1.5. Postwar version. Made by Carl Zeiss Jena in Germany. A popular compact aluminum barrel version with T coating. Manufactured around 1953. A modified Gauss type construction with 4 groups and 6 elements. The helicoid distance scale is in feet. Minimum focusing distance is 1 meter. Weight is approximately 396g measured.
Despite being a large-aperture high-speed lens, the central image area renders firmly even at full aperture, while producing the characteristic swirling bokeh and gentle flare that create a rich old-lens character. With an adapter, it can also be enjoyed on digital mirrorless cameras.

Signs of use are visible, including light scuffs and small scratches. There is one minor ding on the helicoid ring.
Fully overhauled in February 2026. The aperture and helicoid now operate with an exceptionally smooth and precise feel.
There are two relatively deep linear scratches near the edge of the front element, along with a few additional small marks. We conducted practical shooting tests from wide open through f22, and did not observe any noticeable impact from these scratches in actual images. Sample photos have been posted in our test gallery, and we would be pleased if you take a look.
While the scratches on the front element are unfortunate, this is a well-suited example for someone who wishes to use the lens freely for photography. Thanks to the careful servicing, both the handling and image quality are beyond question.
Somewhat scarce.