77mm 72mm Step Down Ring

the raynox ra6272 adapter ring allows users to attach a 72mm lens accessory or filter to a camera with a 77mm filter mount size. the adapter ring is made of metal and is a mere ...

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.

This adapter enables a filter with an attachment size of 77mm to be used with a lens with an attachment size of 72mm.