Ttartisan af 40mm f 2 vs zeiss batis 40mm f 2 cf?

Here is what the site says about that.

From Zeiss Batis 40mm f/2 CF: Zeiss Batis 40mm f/2 CF: A prime lens by Zeiss for Full frame cameras, 40mm f/2. Specs - Maker: Zeiss - Focal length: 40mm (prime) - Maximum aperture: f/2 - Made for: Full frame sensors - Mounts: Sony E - Stabilised: no - Autofocus: yes What it frames like - On full frame (Sony E): as marked, 40mm. - On APS-C (Sony E): like 60mm on full frame; f/2 gives about the depth of field ...

From TTArtisan AF 40mm f/2: TTArtisan AF 40mm f/2: A prime lens by TTArtisan for Full frame cameras, 40mm f/2. Specs - Maker: TTArtisan - Focal length: 40mm (prime) - Maximum aperture: f/2 - Made for: Full frame sensors - Mounts: Sony E, Nikon Z, L-Mount - Stabilised: no - Autofocus: yes What it frames like - On full frame (Sony E, Nikon Z, L-Mount): as marked, 40mm. - On APS-C (Sony E, Nikon Z, L-Mount): like 60mm on ...

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