Ttartisan 90mm f 1 25 vs voigtl nder apo ultron 90mm f 2?

Here is what the site says about that.

From Voigtländer APO-Ultron 90mm f/2: Voigtländer APO-Ultron 90mm f/2: A prime lens by Voigtländer for Full frame cameras, 90mm f/2. Specs - Maker: Voigtländer - Focal length: 90mm (prime) - Maximum aperture: f/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, 90mm. Cameras it fits - Leica M9: Full frame - Leica M9-P: Full frame - [Leica ...

From TTArtisan 90mm f/1.25: TTArtisan 90mm f/1.25: A prime lens by TTArtisan for Full frame cameras, 90mm f/1.2. Specs - Maker: TTArtisan - Focal length: 90mm (prime) - Maximum aperture: f/1.2 - 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, 90mm. - ...

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