Laowa 15mm f 2 zero d vs ttartisan 10mm f 2 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 10mm f/2 ASPH: TTArtisan 10mm f/2 ASPH: A prime lens by TTArtisan for APS-C cameras, 10mm f/2. Specs - Maker: TTArtisan - Focal length: 10mm (prime) - Maximum aperture: f/2 - Made for: APS-C sensors - Mounts: Sony E, Fujifilm X, Nikon Z, Canon RF, Micro Four Thirds - Stabilised: no - Autofocus: no, manual focus What it frames like - On APS-C (Sony E, Fujifilm X, Nikon Z): like 15mm on full frame; f/2 gives about ...

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