Hasselblad's databus standard lens — the T*-coated Zeiss Planar CFE 80mm f/2.8 for electronic V bodies.
The Carl Zeiss Planar CFE 80mm f/2.8 is the databus version of the standard lens for the Hasselblad V system, adding electronic contacts to the CF/CFi design so it can communicate with metering bodies such as the 202/203/205 and later film-back automation. It is the most current form of the normal 80mm Planar, sitting at the top of the leaf-shutter lens line.
This is a manual-focus Hasselblad V lens with a built-in leaf shutter, the CFE design keeping the separate aperture and shutter rings and F setting of the CF while adding the electronic databus contacts. Its maximum aperture is f/2.8 and it covers the 6x6 frame as a Planar double-Gauss normal lens with T* multicoating. The added electronics let it work with the aperture-priority and databus features of the later V bodies.
Optically it renders like the other 80mm Planars, with natural perspective and balanced, low-distortion drawing that suits portraits, general shooting, landscape and documentary work. The calm out-of-focus rendering and T* contrast carry over, and the databus support is the practical difference, giving fuller metering and exposure integration on the electronic V cameras that can use those contacts.
CFE lenses are newer and command higher used prices than plain CF examples, especially in clean condition. Confirm the leaf shutter runs cleanly at all speeds, that the C/F selector works, and that the databus contacts are clean and undamaged. Check the glass for haze, fungus and separation and the coating for cleaning marks, and verify focus and aperture rings are smooth and the blades dry before buying.