Promaster Stepping Ring - 58mm-72mm

The threading on this ring is so precise that my 72mm filter screws on without any wobble or cross-threading, which is exactly what you want for a secure fit. It feels solidly built and does exactly what it should.

Finally got this to mount my 72mm filter onto a 58mm lens and the fit is snug with zero wobble. Threads are clean and the ring itself feels solid, so no worries about it binding mid-shoot.

The machining is spot on—threads spin on smoothly with zero wobble, and the step up from 58mm to 72mm feels solid even with a heavier filter attached. I've used it a handful of times already and it's held tight every shoot.