The historical Schneider lenses (vintage lenses) were manufactured for 16mm and 35mm film format. The Schneider optics have different lens mounts and the optical system has slightly changed over the course of the lens production.
At present, P+S Technik rehouses 35mm lenses only! P+S Technik rehouses all lenses with ARRI standard mount. (Cinegon and Cine-Xenon). Xenon lenses with other mounts can usually be rehoused as well but these lenses have to be checked for suitability at P+S Technik.