I think the ZM 50 1.5 and ZM 35 are not favored any longer as much because they aren't as good optically (ZM 35 too affected by the sensor stack, the 50 1.5 by the sensor stack and the optical formula), and most have found CV to take their place, especially the 40 1.2. I think the ZM 35 1.4 is a little hard to hit focus, and the MFD is longer too.
I like the CV's less than these for rendering and color, but they are priced better with nicer ergo, and the they do come in native e-mount...
