Opticron UTA 連接環 42~41.3mm

The aluminium alloy feels solid but doesn’t add any noticeable weight to my setup, which is exactly what I needed. Threading it onto the UTA body was smooth and snug right away.

I was a bit worried the screw thread might strip easily, but it threads onto my UTA body smoothly and holds perfectly with no wiggle. The lightweight aluminum construction is a nice bonus.

The ring clicked onto my binoculars' UTA body with a reassuring precision, and the aluminum alloy feels dense enough to last years in the field. Weighing next to nothing, it's barely noticeable during long hikes, which is exactly what I wanted.