Laowa 15mm f 2 zero d vs ttartisan 14mm f 2 8 asph?

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From Laowa 15mm f/2 Zero-D: Laowa 15mm f/2 Zero-D: A prime lens by Laowa for Full frame cameras, 15mm f/2. A fast ultra-wide for astro; the Leica M version is sold as the LM. Specs - Maker: Laowa - Focal length: 15mm (prime) - Maximum aperture: f/2 - Made for: Full frame sensors - Mounts: Sony E, Nikon Z, Canon RF, Leica M - Stabilised: no - Autofocus: no, manual focus What it frames like - On full frame ...

From TTArtisan 14mm f/2.8 ASPH: TTArtisan 14mm f/2.8 ASPH: A prime lens by TTArtisan for Full frame cameras, 14mm f/2.8. Specs - Maker: TTArtisan - 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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