Sony fe 135mm f 1 8 gm vs viltrox af 135mm f 1 8 lab?

Here is what the site says about that.

From Sony FE 135mm f/1.8 GM: Sony FE 135mm f/1.8 GM: A prime lens by Sony for Full frame cameras, 135mm f/1.8. Specs - Maker: Sony - Focal length: 135mm (prime) - Maximum aperture: f/1.8 - Made for: Full frame sensors - Mounts: Sony E - Stabilised: no - Autofocus: yes What it frames like - On full frame (Sony E): as marked, 135mm. - On APS-C (Sony E): like 202mm on full frame; f/1.8 gives about the depth of field ...

From Viltrox AF 135mm f/1.8 LAB: Viltrox AF 135mm f/1.8 LAB: A prime lens by Viltrox for Full frame cameras, 135mm f/1.8. Specs - Maker: Viltrox - Focal length: 135mm (prime) - Maximum aperture: f/1.8 - Made for: Full frame sensors - Mounts: Sony E, Nikon Z - Stabilised: no - Autofocus: yes What it frames like - On full frame (Sony E, Nikon Z): as marked, 135mm. - On APS-C (Sony E, Nikon Z): like 202mm on full frame; f/1.8 ...

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