The Wooden Camera Zip Box Pro 4 x 5.65 Swing-Away Reduction Rings work with the Zip Box Pro. These interchangeable backs allow you to create a light tight seal with lenses that have a front diameter of 110, 104, 95, 87, or 80mm. The backs easily swap out by loosening four thumbscrews.
Note: Please note that these reduction rings cannot be used to clamp the Zip Box Pro onto a lens, and they can only be used when your Zip Box Pro is configured as a swing-away matte box.