Hasselblad's CF long tele — the T*-coated Zeiss Sonnar CF 250mm f/5.6 for the 6x6 V system.
The Carl Zeiss Sonnar CF 250mm f/5.6 is the long 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 standard reach beyond the 150mm and 180mm and one of the most common longer lenses in the line, used where more distance was needed on the 6x6 format.
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/5.6 and it covers the 6x6 frame as a Sonnar with T* coating. It was produced across the C, CF and later CFi generations, making it a widely available telephoto for the system.
The 250mm gives strong compression and reach for landscape detail, tighter portraits and subjects at a distance, and it was often paired with teleconverters or extension for further magnification. The Sonnar rendering keeps backgrounds smooth and the T* coating maintains contrast, so it served both studio and location photographers who needed to isolate distant subjects on the large square frame.
The CF 250mm is common used and reasonably priced for a long medium-format lens. 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; slow low-end speeds mean the shutter is due for a service.