Tiffen PRO10072AR Step Ring 72mm Lens Square Filter Adapter

The Tiffen PRO10072AR Step Ring is a purpose-built adapter that connects lenses with a 72mm filter thread to the Tiffen Pro100 square filter holder system. Machined from aluminum, it threads directly onto the front of your lens and provides a stable mounting point for the Pro100 holder. The design allows the entire filter assembly to rotate 360 degrees, which is particularly useful when working with graduated neutral density or color filters where precise angular positioning is essential for aligning the transition with a horizon line or other compositional element.

Setup is simple: screw the adapter onto your 72mm lens, attach the Pro100 holder, and slide in your 100mm square or rectangular filters. The aluminum build keeps weight minimal while ensuring the ring holds firm without cross-threading. For photographers who shoot with multiple lenses of different thread sizes, Tiffen offers the same adapter in other diameters, so the Pro100 holder can move between lenses by simply swapping the step ring.