NiSi Ti Pro 55-58mm 鈦合金升接環

The titanium build is shockingly light—I barely feel it on the lens. Screwed on my 55mm prime to fit an old 58mm filter and it didn’t budge. That knurling really helps get a solid grip without over-tightening.

The knurled sides make a real difference—no slipping when I’m swapping filters in a hurry. It threads on smoothly to both my 55mm lens and 58mm filters, and the weight is barely noticeable.

The titanium build is noticeably lighter than my old metal step-up rings, which is great for keeping the lens setup balanced. The knurled grip is precise enough to screw on tightly even with damp hands.