Promaster 5281 升級環 - 55mm-67mm

Fits perfectly between my 55mm lens and 67mm filters—no wobble, no thread binding, just a solid click when screwing on. The aluminum build feels sturdy enough for daily use, and it’s saved me from buying a whole new set of filters.

Finally no more duct-tape rigging filters onto my 55mm lens—this ring seats perfectly flush, and the step-up lets me share one 67mm polarizer across two lenses. The fit is snug without any wobble, and the black finish doesn't glare in bright sun. Solid little bit of metal for the price.

The brass threading on this ring feels much sturdier than the aluminum ones I've tried before. It threaded onto my 55mm lens smoothly and my 67mm filters fit perfectly without any wobble. Exactly what I needed to use my larger filters on a smaller lens.