PolarPro Quartzline 49mm 轉 67mm 升級環 49-67-SUR 黑色 CNC 加工框

The deep knurling on this step-up ring makes it easy to grip and thread even with cold fingers, and the brass frame feels much sturdier than the aluminum ones I've used before. It's a simple piece, but the precision machining is obvious when you screw it on smoothly.

Finally, a step-up ring that doesn't get stuck on my lens. The brass frame is noticeably sturdier than the aluminum ones I've tried, and it threads on smooth every time.

The deep knurling on this step-up ring makes it easy to grip even with cold hands, and the brass frame feels solid when threading onto my lens. I was glad to find it lets me use my larger 67mm filters without any wobble or light leaks.