Sony fe 20 70mm f 4 g vs sigma 24 70mm f 2 8 dg dn art?

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From Sigma 24-70mm f/2.8 DG DN Art: Sigma 24-70mm f/2.8 DG DN Art: A zoom lens by Sigma for Full frame cameras, 24-70mm f/2.8. The first version, replaced by the II in 2024 and common used. Specs - Maker: Sigma - Focal length: 24-70mm (zoom) - Maximum aperture: f/2.8 - 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, 24-70mm. - On APS-C ...

From Sony FE 20-70mm f/4 G: Sony FE 20-70mm f/4 G: A zoom lens by Sony for Full frame cameras, 20-70mm f/4. Specs - Maker: Sony - Focal length: 20-70mm (zoom) - Maximum aperture: f/4 - Made for: Full frame sensors - Mounts: Sony E - Stabilised: no - Autofocus: yes What it frames like - On full frame (Sony E): as marked, 20-70mm. - On APS-C (Sony E): like 30-105mm on full frame; f/4 gives about the depth of field ...

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