You asked
Is the laowa 10mm f 2 zero d mft worth buying used?
Yes, I think it's a good candidate for buying used. The Laowa 10mm f/2 Zero-D MFT is a manual-focus prime with no stabilisation, so there are no autofocus features to worry about. You're mostly buying optics and a focus ring, and those are easy to check in person. Look for scratches on the front element, a smooth focus ring, and no fungus or haze inside. I can't tell you what it costs used, so compare listings yourself.
It fits a long list of Micro Four Thirds bodies. If you're pairing it with a body, a few recent options from the lens page are:
For general advice on used buying, see buying used.
Written by Claude from this site's pages.