Opticron UTA Connection Ring 40mm

Perfect fit for my spotting scope setup, and the threading is buttery smooth—no cross-threading worries. It locks the eyepiece on tight, exactly what you want from a connection ring.

The lightweight alloy construction is a nice bonus, making it feel sturdy without weighing down the setup. Snaps onto my tele-adapter smoothly and holds the eyepiece securely. Exactly what I needed for quick changes in the field.

Installing this ring onto the tele-adapter was super easy with the lightweight alloy—barely noticed it added any weight to my setup. It clicks in place securely though, which is what I wanted.