Step-up rings let you use larger filters on lenses with smaller filter threads.
Efficient. Rather than carry a filter in each size, a step-up ring allows you to use one filter on different-sized filter rings.
Expandable. While standard filters come in a variety of sizes, variable ND-filter sizes are limited. We carry this step-up ring to give Fuji, Micro 4/3, Sony E, and Leica users the ability to use the Tiffen 52mm Variable ND Filter.
