You are looking at a rare Canon FD 400mm f/2.8 lens with an Arri PL mount. It was converted to PL by Century Optics and features a universal mount, metal focus gear, and lens support bracket for studio-height spacing (compatible with 15mm or 19mm Arri STUDIO lens supports). It covers Alexa LF, Sony Venice, Red Monstro, and is incredibly sharp. For a vintage lens of this age, it is in BEAUTIFUL condition. No scratches, mold, or haze, on the glass.
Only a small amount of internal dust that has no adverse affect on the image. The body shows light signs of use. In its past life, it ...