It’s great for assemblies which require longer focal lengths and larger elements. For some time now I’ve been using 8020 extrusion for quick prototyping of optical assemblies.
Shimano's ULTEGRA R8020 series delivers refined rider ergonomics, increased shifting performance and super efficient hydraulic disc braking for confident control in all riding conditions. Pretty hard to do without that hold-it-in-your-hands experience. Seems important to use the smallest-area geometry that will do the job.
