Olympus m zuiko 25mm f 1 8 vs ttartisan 50mm f 2?

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From Olympus M.Zuiko 25mm f/1.8: Olympus M.Zuiko 25mm f/1.8: A prime lens by Olympus for Micro Four Thirds cameras, 25mm f/1.8. Specs - Maker: Olympus - Focal length: 25mm (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 50mm on full frame; f/1.8 gives about the depth of field of f/3.6 there. ...

From TTArtisan 50mm f/2: TTArtisan 50mm f/2: A prime lens by TTArtisan for Full frame cameras, 50mm f/2. Specs - Maker: TTArtisan - Focal length: 50mm (prime) - Maximum aperture: f/2 - Made for: Full frame 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 full frame (Sony E, Nikon Z, Canon RF, L-Mount): as marked, 50mm. ...

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