Is the ttartisan af 75mm f 2 sharp wide open?

Here is what the site says about that.

From TTArtisan AF 75mm f/2: TTArtisan AF 75mm f/2: A prime lens by TTArtisan for Full frame cameras, 75mm f/2. Specs - Maker: TTArtisan - Focal length: 75mm (prime) - Maximum aperture: f/2 - Made for: Full frame sensors - Mounts: Sony E, Fujifilm X, Nikon Z, L-Mount - Stabilised: no - Autofocus: yes What it frames like - On full frame (Sony E, Nikon Z, L-Mount): as marked, 75mm. - On APS-C (Sony E, Fujifilm X, Nikon Z, ...

From TTArtisan AF 40mm f/2: TTArtisan AF 40mm f/2: A prime lens by TTArtisan for Full frame cameras, 40mm f/2.

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