Sigma 18 35mm f 1 8 dc hsm art vs sigma 24 35mm f 2 dg hsm art?

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From Sigma 18-35mm f/1.8 DC HSM Art: Sigma 18-35mm f/1.8 DC HSM Art: A zoom lens by Sigma for APS-C cameras, 18-35mm f/1.8. Specs - Maker: Sigma - Focal length: 18-35mm (zoom) - Maximum aperture: f/1.8 - Made for: APS-C sensors - Mounts: Canon EF, Nikon F, Pentax K - Stabilised: no - Autofocus: yes What it frames like - On APS-C (Nikon F, Pentax K): like 27-52mm on full frame; f/1.8 gives about the depth of field of f/2.7 there. - On ...

From Sigma 24-35mm f/2 DG HSM Art: Sigma 24-35mm f/2 DG HSM Art: A zoom lens by Sigma for Full frame cameras, 24-35mm f/2. Specs - Maker: Sigma - Focal length: 24-35mm (zoom) - Maximum aperture: f/2 - Made for: Full frame sensors - Mounts: Canon EF, Nikon F - Stabilised: no - Autofocus: yes What it frames like - On full frame (Canon EF, Nikon F): as marked, 24-35mm. - On APS-C (Nikon F): like 36-52mm on full frame; f/2 gives about ...

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