Voigtl nder super wide heliar 15mm f 4 5 aspherical iii vs zeiss distagon t 15mm f 2 8 zm?

Here is what the site says about that.

From Voigtländer Super Wide-Heliar 15mm f/4.5 Aspherical III: Voigtländer Super Wide-Heliar 15mm f/4.5 Aspherical III: A prime lens by Voigtländer for Full frame cameras, 15mm f/4.5. Specs - Maker: Voigtländer - Focal length: 15mm (prime) - Maximum aperture: f/4.5 - Made for: Full frame sensors - Mounts: Sony E, Leica M, Nikon Z - Stabilised: no - Autofocus: no, manual focus What it frames like - On full frame (Sony E, Leica M, Nikon Z): as marked, 15mm. - On APS-C (Sony E, Nikon Z): ...

From Zeiss Distagon T* 15mm f/2.8 ZM: Zeiss Distagon T* 15mm f/2.8 ZM: A prime lens by Zeiss for Full frame cameras, 15mm f/2.8. Specs - Maker: Zeiss - Focal length: 15mm (prime) - Maximum aperture: f/2.8 - 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, 15mm. Cameras it fits - Leica M9: Full frame - Leica M9-P: Full frame - [Leica ...

Quoted from this site's pages.