Up for sale is a genuine Carl Zeiss Jena Biotar 58mm f/2 T vintage camera lens, serial number 3644824, made in Germany. This is one of the most sought-after vintage lenses in the world, famous for its stunning swirly bokeh rendering and beautiful out-of-focus characteristics that modern photographers and videographers prize highly. The Biotar 2/58 is a legendary East German lens produced by Carl Zeiss Jena, beloved by portrait photographers, filmmakers, and vintage lens collectors alike. This example features the classic chrome barrel construction with black front element housing, knurled focus and aperture rings, and the iconic T coating designation. Condition: Used/Vintage. The front element shows typical light dust and minor cleaning marks visible in the images. The rear element shows some dust and minor haze as expected for a lens of this age. The aperture blades appear functional. The focus ring turns smoothly. The chrome barrel shows normal age-related wear and light scuffs. There is some dust/debris visible on the rear glass element — buyers should inspect photos carefully. Includes: Lens, rear metal cap, and original black leather zipper case. Mount appears to be M42/Pentax screw mount based on the rear element configuration. Easily adapted to Sony E, Canon EF/RF, Nikon F/Z, Fuji X, and most modern mirrorless systems with inexpensive adapters. Ships fast and securely packaged with bubble wrap and box protection.