NiSi Brass Pro 40.5-46mm opzetring

Fiddling with tiny 40.5mm threads is always a pain, but this ring grips well thanks to the knurled edges. The brass feels solid, and it lets me pop my 46mm filters onto my smaller lens without any wobble.

Finally, a step-up ring that doesn't feel flimsy—the brass construction gives it a nice, solid weight and the threading is silky smooth. It's snug enough on my lens that I don't worry about it slipping, but still easy to twist on and off when swapping filters.

The knurled edges make all the difference—I can actually twist this thing on and off without needing pliers, which was a constant struggle with my old aluminum rings. The brass frame feels solid and threaded onto my lens perfectly smooth, no wobble or cross-threading at all. This is exactly what I n