You asked
Sony fe 12 24mm f 2 8 gm vs sigma 14 24mm f 2 8 dg dn art?
Both are f/2.8 wide zooms for full frame, with autofocus and no stabilisation, so the choice comes down to focal range and mount.
The Sony FE 12-24mm f/2.8 GM goes wider, to 12mm on full frame, and only fits Sony E. If you shoot Sony and want the widest view for interiors or big skies, this is my pick.
The Sigma 14-24mm f/2.8 DG DN Art starts at 14mm but also fits L-Mount, so it's the better choice if you might switch to a Leica or Panasonic body later.
For wide-angle landscape work, the landscape guide explains why a wide zoom earns its place, and the focal length guide shows how these focal lengths compare with a standard lens.
Written by Claude from this site's pages.