Promaster Step Up Ring - 37mm-55mm

Finally, a step-up ring that actually fits tight without any wobble. The precision machining is obvious the second you screw it on. It handled the conversion from 37mm to 55mm perfectly for my filter setup.

The threading is so smooth it screws on without any wobble, and the conversion from 37mm to 55mm feels rock-solid on my compact camera. I've used cheaper adapters before that cross-threaded, but this one's precision machining is exactly what I needed.

Snapped this onto my vintage 55mm lens so I could use my modern 37mm filters; the threads are buttery smooth, no wobble at all. Feels solidly machined and hasn't caused any vignetting.