Sigma 24mm f 2 dg contemporary vs sony e 16mm f 2 8?

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From Sigma 24mm f/2 DG Contemporary: Sigma 24mm f/2 DG Contemporary: A prime lens by Sigma for Full frame cameras, 24mm f/2. Specs - Maker: Sigma - Focal length: 24mm (prime) - Maximum aperture: f/2 - Made for: Full frame sensors - Mounts: Sony E, L-Mount - Stabilised: no - Autofocus: yes What it frames like - On full frame (Sony E, L-Mount): as marked, 24mm. - On APS-C (Sony E, L-Mount): like 36mm on full frame; f/2 gives about the ...

From Sony E 16mm f/2.8: Sony E 16mm f/2.8: A prime lens by Sony for APS-C cameras, 16mm f/2.8. A pancake wide-angle from the NEX era. Specs - Maker: Sony - Focal length: 16mm (prime) - Maximum aperture: f/2.8 - Made for: APS-C sensors - Mounts: Sony E - Stabilised: no - Autofocus: yes What it frames like - On APS-C (Sony E): like 24mm on full frame; f/2.8 gives about the depth of field of f/4.2 there. - ...

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