Voigtlander Nokton 40mm f/1.2 Aperture Series: Milling Lathe
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.
This example looks more promising than the previous example, with a target at a close distance. A key (limiting) lens aberration is discussed and demonstrated.
Voigtlander Nokton 40mm f/1.2 Aperture Series: Milling Lathe
Includes images up to full resolution from f/1.2 through f/11, along with crops and commentary.