Zeiss Standard Speed 85mm T2.1 In rare industrial screw mount (possibly M42?). Easily swappable to Arri PL or B-mount. Visual Products should be able to hook you up. I tested with a PL mount I swapped off another Zeiss and it worked great. Front element has some sort of faint fungus or spots on the coating if you look closely. Otherwise the glass is very clean. Lens performs great. Sharp and contrasty even when testing in hard light. Included screenshots shot wide open My guess is that it sat in it's box with the previous owner for quite some time. Lens body looks like it was hardly used with the exception of a dent on the front outer ring. Iris and focus are smooth. Though the Standard Speeds are designed for S35 this 85mm covers full frame