Step Down Ring Adapter
The Kenko KSDR Step-Down Rings allow a smaller filter or other accessory to attach to a lens of a certain size. For example, a KSDR-6758 would allow a lens with a 67mm filter thread to mount a 58mm filter or other accessory. A wide variety of lens-to-smaller-filter or accessory combinations are available. The Kenko step up rings are made of lightweight aluminum alloy that is anodized in a black finish in order to be durable and resist corrosion.