Nikon af s 105mm f 1 4e ed vs sigma 105mm f 1 4 dg hsm art?

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From Nikon AF-S 105mm f/1.4E ED: Nikon AF-S 105mm f/1.4E ED: A prime lens by Nikon for Full frame cameras, 105mm f/1.4. Specs - Maker: Nikon - Focal length: 105mm (prime) - Maximum aperture: f/1.4 - Made for: Full frame sensors - Mounts: Nikon F - Stabilised: no - Autofocus: yes What it frames like - On full frame (Nikon F): as marked, 105mm. - On APS-C (Nikon F): like 158mm on full frame; f/1.4 gives about the depth of field ...

From Sigma 105mm f/1.4 DG HSM Art: Sigma 105mm f/1.4 DG HSM Art: A prime lens by Sigma for Full frame cameras, 105mm f/1.4. A very large, very heavy portrait prime known for its background blur. Specs - Maker: Sigma - Focal length: 105mm (prime) - Maximum aperture: f/1.4 - Made for: Full frame sensors - Mounts: Canon EF, Nikon F, Sony E, L-Mount - Stabilised: no - Autofocus: yes What it frames like - On full frame (Canon EF, Nikon F, Sony ...

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