Leica apo macro elmarit sl 100mm f 2 8 vs sigma 105mm f 2 8 dg dn macro art?

Here is what the site says about that.

From Leica APO-Macro-Elmarit-SL 100mm f/2.8: Leica APO-Macro-Elmarit-SL 100mm f/2.8: A macro lens by Leica for Full frame cameras, 100mm f/2.8. Specs - Maker: Leica - 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 105mm f/2.8 DG DN Macro Art: Sigma 105mm f/2.8 DG DN Macro Art: A macro lens by Sigma for Full frame cameras, 105mm f/2.8. Specs - Maker: Sigma - Focal length: 105mm (macro) - 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, 105mm. - On APS-C (Sony E, L-Mount): like 158mm on full frame; f/2.8 gives about the ...

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