Tokina f rin 20mm f 2 fe af vs zeiss loxia 21mm f 2 8?

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From Tokina FíRIN 20mm f/2 FE AF: Tokina FíRIN 20mm f/2 FE AF: A prime lens by Tokina for Full frame cameras, 20mm f/2. Specs - Maker: Tokina - Focal length: 20mm (prime) - Maximum aperture: f/2 - Made for: Full frame sensors - Mounts: Sony E - Stabilised: no - Autofocus: yes What it frames like - On full frame (Sony E): as marked, 20mm. - On APS-C (Sony E): like 30mm on full frame; f/2 gives about the depth of field ...

From Zeiss Loxia 21mm f/2.8: Zeiss Loxia 21mm f/2.8: A prime lens by Zeiss for Full frame cameras, 21mm f/2.8. A small manual-focus wide-angle, popular for landscapes and astro. Specs - Maker: Zeiss - Focal length: 21mm (prime) - Maximum aperture: f/2.8 - Made for: Full frame sensors - Mounts: Sony E - Stabilised: no - Autofocus: no, manual focus What it frames like - On full frame (Sony E): as marked, 21mm. - On APS-C (Sony E): like ...

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