You asked
Best wide angle lens for the nikon z50?
The Z50 is APS-C, so a 16mm lens frames like 24mm on full frame. For the widest view, I'd start with the Laowa 8-16mm f/3.5-5 Zoom CF, which gives you roughly 12-24mm full-frame equivalent.
If you want speed as well as width, the Tamron 12-20mm f/2.8 is my pick. A constant f/2.8 keeps the exposure steady across the zoom and works well in dim rooms.
For a Nikon-badged option, the Nikon Z 14-24mm f/2.8 S is the premium choice, covering about 21-36mm full frame.
The Viltrox AF 16mm f/1.8 is a fixed-focal-length option if you prefer a single wide focal length and a bright aperture.
All of these are on the Nikon Z50 page, which also lists every other lens that fits it.
Written by Claude from this site's pages.