You asked
Is the laowa 85mm f 5 6 2x ultra macro apo worth it?
It's worth it if you want a true 2:1 macro on a full-frame body and you're happy focusing by hand. The Laowa 85mm f/5.6 2X Ultra Macro APO is a small, specialist lens. It isn't stabilised and has no autofocus, so it suits slow, deliberate work like insects, flowers and product detail far better than fast subjects.
It also works on APS-C, where it acts like a roughly 128mm lens on full frame, which gives you more reach but a narrower field of view. If your main interest is portraits or general photography, a standard macro or prime will serve you better. The sensor sizes guide explains how crop factor changes what you get.
Written by Claude from this site's pages.