Zeiss's Contax shift lens — the PC-Distagon T* 35mm f/2.8, perspective-control manual-focus glass for the C/Y mount.
The Zeiss PC-Distagon T* 35mm f/2.8 was a perspective-control shift lens for the Contax/Yashica mount, introduced in the early 1980s for architectural and technical work. The PC prefix marks it as a shifting variant of the Distagon design.
This is a manual-focus C/Y-mount lens with a 35mm focal length and a maximum aperture of f/2.8, equipped with a shift movement to correct converging verticals. Metering and shift operation were performed manually. Other figures are omitted where they cannot be verified.
The shift mechanism suits architecture, interiors and product photography, letting the photographer keep tall structures upright without tilting the camera. At 35mm it provides a moderate wide field with the added control the movement brings.
This is a specialised and relatively scarce lens that carries a premium on the used market. Check the shift mechanism for smooth, secure travel and locking, inspect for haze, fungus and coating wear, and confirm clean aperture action. A C/Y adapter allows mirrorless use with the movement retained.