Sigma 30mm f 1 4 dc hsm art vs nikon af s dx 35mm f 1 8g?

Here is what the site says about that.

From Nikon AF-S DX 35mm f/1.8G: Nikon AF-S DX 35mm f/1.8G: A prime lens by Nikon for APS-C cameras, 35mm f/1.8. Specs - Maker: Nikon - Focal length: 35mm (prime) - Maximum aperture: f/1.8 - Made for: APS-C sensors - Mounts: Nikon F - Stabilised: no - Autofocus: yes What it frames like - On APS-C (Nikon F): like 52mm on full frame; f/1.8 gives about the depth of field of f/2.7 there. - On the larger-sensor bodies of Nikon F: ...

From Sigma 30mm f/1.4 DC HSM Art: Sigma 30mm f/1.4 DC HSM Art: A prime lens by Sigma for APS-C cameras, 30mm f/1.4. Specs - Maker: Sigma - Focal length: 30mm (prime) - Maximum aperture: f/1.4 - 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 45mm on full frame; f/1.4 gives about the depth of field of f/2.1 there. - On ...

Quoted from this site's pages.