This may have been noted elsewhere. For Nex too it seems. From Zeiss blog: New Family of Lenses for Mirrorless System Cameras | Camera Lens Blog Major points: 1. Three prime lenses are already in development: 2.8/12, 1.8/32 and 2.8/50 macro. 2. The lenses for the X-bayonet will come with a manual aperture setting. Nice endorsement of the X-mount.