Promaster Stepping Ring - 55mm-52mm

I was a bit worried about compatibility, but this ring threaded on smoothly without any cross-threading. The precision machining is obvious — it's perfectly even and doesn't wobble at all.

The machining on this ring is precise—it threads on smoothly without any wobble or cross-threading. Finally got my 52mm polarizer to fit my 55mm lens perfectly.

It fits snugly on my 55mm lens and lets me use my smaller 52mm filters without any wobble. The machining feels precise and smooth, though I wish it came in a slightly thicker metal for extra durability. Overall, a solid and functional adapter that does exactly what it promises.