You asked
Is the viltrox af 75mm f 1 8 evo worth buying used?
I'd say yes, if you shoot an APS-C body and want a fast portrait lens. I can't tell you whether the price is good, because the site doesn't track prices, so compare any used offer with what new costs.
The Viltrox AF 75mm f/1.8 EVO is made for APS-C sensors and comes in Sony E, Fujifilm X and Nikon Z mounts. It has autofocus but no stabilisation. On APS-C it frames like about 112mm on full frame, which gives you real portrait reach.
Buying used makes sense here. As the buying used guide says, cameras and lenses are built to last, so older gear is often a bargain. Check that the mount matches your body, and look over the lens for a clean front element and smooth focusing.
Written by Claude from this site's pages.