Hasselblad's flat-field short tele — the Zeiss Planar C 100mm f/3.5, prized for even 6x6 correction.
The Carl Zeiss Planar C 100mm f/3.5 is a short-telephoto normal lens for the Hasselblad V system in its C form, with the coupled leaf shutter and chrome or black C-series barrel. It sits just longer than the 80mm standard and is noted within the system for its very high flat-field correction, which made it a favourite for demanding critical work on 6x6.
This is a manual-focus Hasselblad V lens with an integral leaf shutter, the C design coupling aperture and shutter through the linked ring. Its maximum aperture is f/3.5 and it covers the 6x6 frame as a Planar. The 100mm is often singled out among V lenses for its flatness of field and even performance across the frame, which is why technical and reproduction photographers sought it out over the standard 80mm.
The slightly longer focal length gives a natural-to-flattering perspective for portraits and a comfortable reach for landscape and architectural detail, while the flat-field correction suits copy and product work where edge-to-edge evenness matters. Rendering follows the restrained Planar character, with low distortion and smooth transitions rather than a showy signature, making it a precise general-purpose lens on the square format.
The C 100mm is less common than the 80mm and holds solid used values on its reputation for correction. Check the coupled leaf shutter fires accurately at all speeds, inspect the glass for haze, fungus and separation, and confirm the coating is free of heavy cleaning marks. Verify the focus and coupled ring turn smoothly and the aperture blades are dry, since older C shutters can slow and benefit from a service.