Leica summilux m 35mm f 1 4 vs voigtl nder nokton 35mm f 1 2 aspherical iv?

Here is what the site says about that.

From Voigtländer Nokton 35mm f/1.2 Aspherical IV: Voigtländer Nokton 35mm f/1.2 Aspherical IV: A prime lens by Voigtländer for Full frame cameras, 35mm f/1.2. Specs - Maker: Voigtländer - Focal length: 35mm (prime) - Maximum aperture: f/1.2 - Made for: Full frame sensors - Mounts: Leica M - Stabilised: no - Autofocus: no, manual focus What it frames like - On full frame (Leica M): as marked, 35mm. Cameras it fits - Leica M9: Full frame - Leica M9-P: Full frame - [Leica ...

From Leica Summilux-M 35mm f/1.4: Leica Summilux-M 35mm f/1.4: A prime lens by Leica for Full frame cameras, 35mm f/1.4. A remake of Leica's 1960s design, soft and glowing wide open. Specs - Maker: Leica - Focal length: 35mm (prime) - Maximum aperture: f/1.4 - Made for: Full frame sensors - Mounts: Leica M - Stabilised: no - Autofocus: no, manual focus What it frames like - On full frame (Leica M): as marked, 35mm. Cameras it fits - ...

Quoted from this site's pages.