Viltrox af 20mm f 2 8 air vs tamron 20mm f 2 8 di iii osd m1 2?

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From Tamron 20mm f/2.8 Di III OSD M1:2: Tamron 20mm f/2.8 Di III OSD M1:2: A prime lens by Tamron for Full frame cameras, 20mm f/2.8. A small, inexpensive wide prime that focuses close enough for half life-size. Specs - Maker: Tamron - Focal length: 20mm (prime) - Maximum aperture: f/2.8 - 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): ...

From Viltrox AF 20mm f/2.8 Air: Viltrox AF 20mm f/2.8 Air: A prime lens by Viltrox for Full frame cameras, 20mm f/2.8. Specs - Maker: Viltrox - Focal length: 20mm (prime) - Maximum aperture: f/2.8 - Made for: Full frame sensors - Mounts: Sony E, Nikon Z, L-Mount - Stabilised: no - Autofocus: yes What it frames like - On full frame (Sony E, Nikon Z, L-Mount): as marked, 20mm. - On APS-C (Sony E, Nikon Z, L-Mount): like 30mm on ...

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