Viltrox af 28mm f 1 8 vs voigtl nder apo lanthar 28mm f 2 aspherical?

Here is what the site says about that.

From Voigtländer APO-Lanthar 28mm f/2 Aspherical: Voigtländer APO-Lanthar 28mm f/2 Aspherical: A prime lens by Voigtländer for Full frame cameras, 28mm f/2. Specs - Maker: Voigtländer - Focal length: 28mm (prime) - Maximum aperture: f/2 - Made for: Full frame sensors - Mounts: Sony E, Nikon Z, Leica M - Stabilised: no - Autofocus: no, manual focus What it frames like - On full frame (Sony E, Nikon Z, Leica M): as marked, 28mm. - On APS-C (Sony E, Nikon Z): ...

From Viltrox AF 28mm f/1.8: Viltrox AF 28mm f/1.8: A prime lens by Viltrox for Full frame cameras, 28mm f/1.8. Specs - Maker: Viltrox - Focal length: 28mm (prime) - Maximum aperture: f/1.8 - Made for: Full frame sensors - Mounts: Sony E, Nikon Z - Stabilised: no - Autofocus: yes What it frames like - On full frame (Sony E, Nikon Z): as marked, 28mm. - On APS-C (Sony E, Nikon Z): like 42mm on full frame; f/1.8 ...

Quoted from this site's pages.