edwardkaraa wrote:
The zm 35/2 is known for its 3D and high contrast. But somehow it looses some of the magic when used on crop sensors. The zm 25 is a very well corrected lens without any discernible FC and SA. It works equally well on FF and crop.
Boy, I'm not sure that I agree. I do think the ZM 35/2.8 maybe looses something on aps-c, but the ZM 35/2 is just about a perfect lens on aps-c, IMO. I must have a particularly good copy or something, because I'm shocked how sharp it is wide open, and, stopped down a tad, it's more or less technically perfect edge to edge on aps-c. As Luka has mentioned, it's among the best lenses I've used for infinity focus, and I find it to be a great standard lens on NEX, if you want technical. I still like the Contax G, too, but it can't touch the ZM in sharpness, distortion, flare, etc.
I've also been surprised how usable the ZM 50/1.5 is on aps-c. It's a great portrait length on a crop camera, and, by cutting off the edges a bit, it's truly two lenses in one, depending on how far you stop down.