One has to be careful before reading too much into this, because Zeiss MTF charts are actual (from measurements), whereas the ones Sony publishes are computed, like Canon's and Nikon's. And, guess what? the computed ones look better. So it remains to be seen whether the Zeiss MTF for this lens emanates from Zeiss and is actually measured, or from Sony and is computed. But, if it shows that the new lens supasses the ZM 35 f:2.0, it is very promising indeed