Leica summarit m 75mm f 2 4 vs 7artisans m 75mm f 1 25?

Here is what the site says about that.

From Leica Summarit-M 75mm f/2.4: Leica Summarit-M 75mm f/2.4: A prime lens by Leica for Full frame cameras, 75mm f/2.4. Specs - Maker: Leica - Focal length: 75mm (prime) - Maximum aperture: f/2.4 - 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, 75mm. Cameras it fits - Leica M9: Full frame - Leica M9-P: Full frame - [Leica ...

From 7Artisans M 75mm f/1.25: 7Artisans M 75mm f/1.25: A prime lens by 7Artisans for Full frame cameras, 75mm f/1.2. Specs - Maker: 7Artisans - Focal length: 75mm (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, 75mm. Cameras it fits - Leica M9: Full frame - Leica M9-P: Full frame - [Leica ...

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