You asked
Is the laowa 9mm f 2 8 zero d worth buying used?
Yes, I think it's a good one to buy used. The Laowa 9mm f/2.8 Zero-D is a manual-focus prime with no stabilisation, so there's no autofocus motor or stabiliser to worry about, and it's built to be simple. It's made for APS-C, and on those bodies it frames like 14mm on full frame.
Check the mount before you buy. It comes in Fujifilm X, Sony E, Nikon Z, L-Mount and Micro Four Thirds versions, so make sure you're getting the one that fits your camera.
If you're buying the camera and lens together, a body that's a generation or two old often gives the most for the money. See buying used for more, and the Laowa 9mm f/2.8 Zero-D page for the full list of compatible cameras.
Written by Claude from this site's pages.