Olympus m zuiko 17mm f 1 8 vs ttartisan 23mm f 1 4?

Here is what the site says about that.

From Olympus M.Zuiko 17mm f/1.8: Olympus M.Zuiko 17mm f/1.8: A prime lens by Olympus for Micro Four Thirds cameras, 17mm f/1.8. Specs - Maker: Olympus - Focal length: 17mm (prime) - Maximum aperture: f/1.8 - Made for: Micro Four Thirds sensors - Mounts: Micro Four Thirds - Stabilised: no - Autofocus: yes What it frames like - On Micro Four Thirds (Micro Four Thirds): like 34mm on full frame; f/1.8 gives about the depth of field of f/3.6 there. ...

From TTArtisan 23mm f/1.4: TTArtisan 23mm f/1.4: A prime lens by TTArtisan for APS-C cameras, 23mm f/1.4. Specs - Maker: TTArtisan - Focal length: 23mm (prime) - Maximum aperture: f/1.4 - Made for: APS-C sensors - Mounts: Sony E, Fujifilm X, Nikon Z, Canon RF, L-Mount, Micro Four Thirds - Stabilised: no - Autofocus: no, manual focus What it frames like - On APS-C (Sony E, Fujifilm X, Nikon Z, L-Mount): like 34mm on full frame; f/1.4 ...

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