Hasselblad's classic portrait tele — the T*-coated Zeiss Sonnar CF 150mm f/4 for the 6x6 V system.
The Carl Zeiss Sonnar CF 150mm f/4 is the classic portrait telephoto of the Hasselblad V system in CF form, with the Prontor CF leaf shutter, rubberised rings and T* multicoating. Based on the Sonnar formula, it was the most common medium telephoto in the line and the standard step up from the 80mm normal lens for head-and-shoulders portraiture on 6x6.
This is a manual-focus Hasselblad V lens with a built-in leaf shutter, the CF design giving separate aperture and shutter rings and an F setting for focal-plane-shutter bodies. Its maximum aperture is f/4 and it covers the 6x6 frame as a Sonnar with T* coating. The Sonnar design is relatively compact for its focal length and was produced across the C, CF and later CFi generations of the system.
The 150mm gives the flattering working distance and perspective that made it the default portrait lens for the V system, compressing features gently and rendering backgrounds smoothly at f/4. The Sonnar formula gives a warm, gentle out-of-focus quality that photographers associate with medium-format portraiture, and the modest reach also suits landscape detail and general work where a short telephoto is wanted.
The CF 150mm is common used and among the more affordable telephotos in the line. Confirm the CF leaf shutter runs cleanly at all speeds and that the C/F selector works, then check the glass for haze, fungus and separation and the T* coating for cleaning marks. Verify the focus helicoid and aperture ring are smooth and the blades dry; a slow low-speed shutter points to a service being due.