Zeiss biogon t 28mm f 2 8 zm vs 7artisans m 28mm f 1 4?

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From Zeiss Biogon T* 28mm f/2.8 ZM: Zeiss Biogon T* 28mm f/2.8 ZM: A prime lens by Zeiss for Full frame cameras, 28mm f/2.8. Specs - Maker: Zeiss - Focal length: 28mm (prime) - Maximum aperture: f/2.8 - Made for: Full frame sensors - Mounts: Leica M - Stabilised: no - Autofocus: no, manual focus What it frames like - On full frame (Leica M): as marked, 28mm. Cameras it fits - Leica M9: Full frame - Leica M9-P: Full frame - [Leica ...

From 7Artisans M 28mm f/1.4: 7Artisans M 28mm f/1.4: A prime lens by 7Artisans for Full frame cameras, 28mm f/1.4. Specs - Maker: 7Artisans - Focal length: 28mm (prime) - Maximum aperture: f/1.4 - Made for: Full frame sensors - Mounts: Leica M - Stabilised: no - Autofocus: no, manual focus What it frames like - On full frame (Leica M): as marked, 28mm. Cameras it fits - Leica M9: Full frame - Leica M9-P: Full frame - [Leica ...

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