Voigtlander Nokton 40mm f/1.2 Aperture Series: Sprinter Van, Sunlit Frontal View
See Sony mirrorless wish list.
The about $1099 Voigtlander Nokton 40mm f/1.2 Aspherical offers the highest lens speed available for a normal lens on Sony.
The Voigtlander Nokton 40mm f/1.2 has some highly unusual behaviors, which are shown here to illustrate its unsuitability for general purpose photography (or video).
Voigtlander Nokton 40mm f/1.2 Aperture Series: Sprinter Van, Sunlit Frontal View
Includes images up to full resolution from f/1.2 through f/11, along with crops and commentary.
The the unusual behaviors of the Nokton 40/1.2 set expectations—more examples are going to needed to articulate just what is going on, and I’d say this is one lens for which a planar target or lab test would be quite useless for understanding it.