CARL MEYER VIDEOSTIGMAT 1 1/2 inch 38mm F1.0 in C MOUNT. I have acquired another copy of this lens. Originally for 16mm or TV camera, it is usable on mirrorless cameras via proper adapter mount.
This is the finest copy of this leans I have come across. Very smooth focus and aperture. Body shows little signs of use. Some brassing on the mount and the filter ring. Glass is clean and scratch free. Some fine dust specs inside doesn’t effect image quality. Comes with canon leather case. Vignettes slightly on APS-C sized sensor covers M4/3 fully.