Fujifilm xf 18mm f 1 4 r lm wr vs ttartisan af 17mm f 1 8 air?

Here is what the site says about that.

From Fujifilm XF 18mm f/1.4 R LM WR: Fujifilm XF 18mm f/1.4 R LM WR: A prime lens by Fujifilm for APS-C cameras, 18mm f/1.4. Specs - Maker: Fujifilm - Focal length: 18mm (prime) - Maximum aperture: f/1.4 - Made for: APS-C sensors - Mounts: Fujifilm X - Stabilised: no - Autofocus: yes What it frames like - On APS-C (Fujifilm X): like 27mm on full frame; f/1.4 gives about the depth of field of f/2.1 there. Cameras it fits - Fujifilm X-E1: APS-C - ...

From TTArtisan AF 17mm f/1.8 Air: TTArtisan AF 17mm f/1.8 Air: A prime lens by TTArtisan for APS-C cameras, 17mm f/1.8. Specs - Maker: TTArtisan - Focal length: 17mm (prime) - Maximum aperture: f/1.8 - Made for: APS-C sensors - Mounts: Sony E, Fujifilm X, Nikon Z - Stabilised: no - Autofocus: yes What it frames like - On APS-C (Sony E, Fujifilm X, Nikon Z): like 26mm on full frame; f/1.8 gives about the depth of field of f/2.7 there. ...

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