The Wooden Camera UMB-1 Universal Matte Box (Pro) mounts to 15mm LWS rods using a height-adjustable swing-away bracket and features two rotating 4 x 5.65" filter stages, with an optional third stage available as an add-on. It has a 143mm diameter opening and includes an ARRI-style rubber bellows with a standard 114mm opening, a set of bellows reduction rings, and a universal cloth donut for non-standard lens diameters. The reduction rings snap into the bellows quickly for fast lens changes and are compatible with all third party 114mm threaded bellows. For accessory mounting, the matte box includes NATO accessory rails on the left, right, and top. Completing the package is a folding top flag. The UMB-1 is designed to be user upgradable and can quickly transition between Swing Away 15mm rod and Clamp On configurations.