Panasonic lumix s 100mm f 2 8 macro vs sigma 70mm f 2 8 dg macro art?

Here is what the site says about that.

From Panasonic Lumix S 100mm f/2.8 Macro: Panasonic Lumix S 100mm f/2.8 Macro: A macro lens by Panasonic for Full frame cameras, 100mm f/2.8. Specs - Maker: Panasonic - Focal length: 100mm (macro) - Maximum aperture: f/2.8 - Made for: Full frame sensors - Mounts: L-Mount - Stabilised: no - Autofocus: yes What it frames like - On full frame (L-Mount): as marked, 100mm. - On APS-C (L-Mount): like 150mm on full frame; f/2.8 gives about the depth of field of f/4.2 there. ...

From Sigma 70mm f/2.8 DG Macro Art: Sigma 70mm f/2.8 DG Macro Art: A macro lens by Sigma for Full frame cameras, 70mm f/2.8. A sharp life-size macro lens; never made for Nikon F. Specs - Maker: Sigma - Focal length: 70mm (macro) - Maximum aperture: f/2.8 - Made for: Full frame sensors - Mounts: Canon EF, Sony E, L-Mount - Stabilised: no - Autofocus: yes What it frames like - On full frame (Canon EF, Sony E, L-Mount): as marked, 70mm. - ...

Quoted from this site's pages.