Contax Zeiss 70-210mm f/3.5 AEG Vario-Sonnar zoom lens. Serial no. 7376963. Lens body is in excellent shape, fully functional and in nice condition, almost mint aside from one minor scuff on. Focal length shift and focusing are smooth and precise. Optics are clean and clear and produce beautiful, classical Zeiss imagery, and this early AEG West German built zoom is not only parfocal with a constant aperture, but also a Macro 1:2 close focusing mode and produces beautiful blue and rainbow flares that are very cinematic. Comes with removable custom made follow focus gears for both focus ring and aperture ring (aperture gear should be removed when switching into macro mode). Ships in a cushioned zip lens pouch keep case.