Allows you to use smaller size filters on lenses with a larger diameter thread. The first number is the size that screws into the lens, the second number is the filter size. Step " Down" Rings May Cause Vignetting.
|Adorama Pro Optic Step-Up Adapter Ring 67mm Lens to 72mm Filter Size||$4.49|
|Adorama Pro Optic Step-Down Adapter Ring 72mm Lens to 58mm Filter Size||$3.69|
|Adorama Pro Optic Step-Down Adapter Ring 67mm Lens to 55mm Filter Size||$4.69|
|Adorama Pro Optic Step-Down Adapter Ring 67mm Lens to 52mm Filter Size||$4.69|