Canon 28mm wide-angle lens in Contax RF mount. This lens follows in the lineage of the Serenar 28mm f3.5 released in 1951. Advertised in Asahi Camera, Japanese photo magazine in 1954. It was produced during the era of the Contax IIa/IIIa.
6 elements in 4 groups. It has a faint blue-purple coating. The distance scale is in feet. Minimum focusing distance of about 90 cm. The lens nameplate features the red CT engraving, signifying Contax compatibility. It's quite intriguing that Canon manufactured a rangefinder lens for Contax, as they also made versions for Exakta at the same time. This is a relatively rare lens.
There are minor scuffs on the lower part of the barrel, but there are no major scratches or dents, and the overall exterior is clean. The mount and nameplate are also in excellent condition. Serviced in October 2024, with all functions working smoothly.
There are a few light cleaning marks on the rear element, but they are unlikely to affect image quality.
Sample images taken wide open are available in the test gallery, showcasing the lens’s minimal distortion and natural rendering, making it ideal for Contax enthusiasts.