7artisans 14mm f 2 8 vs viltrox af 14mm f 4 air?

Here is what the site says about that.

From Viltrox AF 14mm f/4 Air: Viltrox AF 14mm f/4 Air: A prime lens by Viltrox for Full frame cameras, 14mm f/4. A very small full-frame ultra-wide. Specs - Maker: Viltrox - Focal length: 14mm (prime) - Maximum aperture: f/4 - 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, 14mm. - On APS-C (Sony E, Nikon ...

From 7Artisans 14mm f/2.8: 7Artisans 14mm f/2.8: A prime lens by 7Artisans for Full frame cameras, 14mm f/2.8. Specs - Maker: 7Artisans - Focal length: 14mm (prime) - Maximum aperture: f/2.8 - Made for: Full frame sensors - Mounts: Sony E, Nikon Z, Canon RF, L-Mount - Stabilised: no - Autofocus: no, manual focus What it frames like - On full frame (Sony E, Nikon Z, Canon RF, L-Mount): as marked, 14mm. - On APS-C (Sony E, ...

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