Promaster Step Up Ring - 37mm-58mm

Exactly the right size to mount my 58mm filters on a 37mm lens, and the threads are smooth and precise. No wobble or light leaks at all.

Was a bit worried about cheap threading, but this ring screwed on smooth as butter to my lens. No wobble at all, and the 37mm to 58mm conversion is exactly what I needed for my filters.

Finally got around to mounting my 58mm filter on a 37mm lens, and the threads catch perfectly with no wobble. The metal feels solid and the step-up is barely noticeable in the final image, which is exactly what I wanted.