Voigtl nder nokton 50mm f 1 2 aspherical vs ttartisan 50mm f 1 4 asph?

Here is what the site says about that.

From Voigtländer Nokton 50mm f/1.2 Aspherical: Voigtländer Nokton 50mm f/1.2 Aspherical: A prime lens by Voigtländer for Full frame cameras, 50mm f/1.2. Specs - Maker: Voigtländer - Focal length: 50mm (prime) - Maximum aperture: f/1.2 - Made for: Full frame sensors - Mounts: Sony E, Leica M - Stabilised: no - Autofocus: no, manual focus What it frames like - On full frame (Sony E, Leica M): as marked, 50mm. - On APS-C (Sony E): like 75mm on full frame; f/1.2 ...

From TTArtisan 50mm f/1.4 ASPH: TTArtisan 50mm f/1.4 ASPH: A prime lens by TTArtisan for Full frame cameras, 50mm f/1.4. Specs - Maker: TTArtisan - Focal length: 50mm (prime) - Maximum aperture: f/1.4 - Made for: Full frame sensors - Mounts: Sony E, Nikon Z, Canon RF, L-Mount, Leica M - Stabilised: no - Autofocus: no, manual focus What it frames like - On full frame (Sony E, Nikon Z, Canon RF, L-Mount, Leica M): as marked, 50mm. - ...

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