Zeiss Otus 85mm f/1.4 APO-Planar: Full MTF Series from f/1.4 - f/16
Zeiss Otus 85mm f/1.4 APO-Planar (about $4490) for Nikon or Canon.
Now up in Guide to Zeiss in the review of the Zeiss Otus 85mm f/1.4 APO-Planar: MTF with commentary for the full aperture range from f/1.4 to f/16.
Performance that sets a new benchmark, a fact that field shots prove over and over again.