Canon rf 16 28mm f 2 8 is stm vs tamron 11 20mm f 2 8 di iii a rxd?

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From Tamron 11-20mm f/2.8 Di III-A RXD: Tamron 11-20mm f/2.8 Di III-A RXD: A zoom lens by Tamron for APS-C cameras, 11-20mm f/2.8. Specs - Maker: Tamron - Focal length: 11-20mm (zoom) - Maximum aperture: f/2.8 - Made for: APS-C sensors - Mounts: Sony E, Fujifilm X, Canon RF - Stabilised: no - Autofocus: yes What it frames like - On APS-C (Sony E, Fujifilm X): like 16-30mm on full frame; f/2.8 gives about the depth of field of f/4.2 there. - On ...

From Canon RF 16-28mm f/2.8 IS STM: Canon RF 16-28mm f/2.8 IS STM: A zoom lens by Canon for Full frame cameras, 16-28mm f/2.8. A small non-L f/2.8 wide zoom, the partner of the RF 28-70mm f/2.8. Specs - Maker: Canon - Focal length: 16-28mm (zoom) - Maximum aperture: f/2.8 - Made for: Full frame sensors - Mounts: Canon RF - Stabilised: yes - Autofocus: yes What it frames like - On full frame (Canon RF): as marked, 16-28mm. - On APS-C (Canon) ...

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