You asked
Nikon z 14 24mm f 2 8 s vs tamron 12 20mm f 2 8?
Both are f/2.8 zooms for full frame with autofocus and no stabilisation, so the choice mostly comes down to your mount and how wide you want to go.
The Nikon Z 14-24mm f/2.8 S is the one for Nikon Z owners who want a 14mm start and 24mm end for interiors and landscapes. It only fits Nikon Z bodies.
The Tamron 12-20mm f/2.8 reaches 12mm, and at 570 grams it's a sensible weight for its width. It fits both Sony E and Nikon Z, so it's the easier pick if you might switch systems or shoot an APS-C Sony. Its 20mm limit is shorter than the Nikon's 24mm, so if 20 to 24mm matters to you, go Nikon. For more on how focal length works, see focal length.
Written by Claude from this site's pages.