Tiffen

Tiffen PRO10072AR Step Ring 72mm Lens Square Filter Adapter

5.0 (1 reviews)

Adapt your 72mm threaded lens to the Tiffen Pro100 filter system with this precision-machined aluminum step ring.

$34.00*
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*Price sourced from Amazon.com. Last updated:Jun 04, 2026.Price and availability are subject to change.

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Overview

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.

Key Features

Aluminum construction

Allows the Pro100 filter holder to fit 72mm threaded lenses

Allows the Pro100 Adapter to rotate 360 degrees on the Lens when using Graduated Filters

Specifications

Brand
Tiffen
Model
PRO10072AR
Type
Step Ring Filter Adapter
Material
Aluminum
Filter Thread Size
72mm
Compatibility
Tiffen Pro100 Filter Holder
Rotation
360 degrees

Pros & Cons

👍 Pros

  • Aluminum construction is lightweight yet durable enough for repeated field use
  • Full 360-degree rotation makes it easy to fine-tune graduated filter positioning
  • Simple screw-on design attaches quickly without tools
  • Maintains a secure, wobble-free connection between the lens and Pro100 holder

👎 Cons

  • Only compatible with the Tiffen Pro100 system, so it cannot be used with other filter holder brands
  • A separate adapter ring is needed for each different lens thread size you own
  • Does not include the Pro100 filter holder itself, which must be purchased separately

Frequently Asked Questions

This step ring fits any lens with a 72mm filter thread, allowing it to connect to the Tiffen Pro100 filter holder system.
Yes. The adapter allows the Pro100 holder to rotate a full 360 degrees on the lens, so you can precisely angle graduated filters for horizon lines or other transitions.
No. The PRO10072AR is designed specifically for the Tiffen Pro100 filter holder system and will not fit other square filter holder brands.
On most standard and telephoto 72mm lenses there should be no vignetting. However, ultra-wide-angle lenses may show some corner darkening depending on the focal length and filter stack thickness.