The Sachtler Ace Matte Box features a reversible 15mm rod bridge that allows you to mount the matte box on rigs with both large and small diameter lenses. The rod bridge can be screwed on right-side up or upside-down to provide either 3.3 or 4.3" of distance between the center of the support rod to the center of the rear clamping interface. Once mounted, it secures with just a single lever.

The Ace Matte Box features two filter stages, one fixed and the rear one rotating up to 90° left or right. Included are adjustable top and side flags, two 4 x 4" and two 4 x 5.65" filter frames, and two different-sized neoprene rings. The flags gently clip on and fix into desired positions when you tighten each one's lever. The filter frames click into place as you insert them while holding a release button. The neoprene rings slide over your lenses to block out any light coming in through the back. They can be cut if necessary for larger lenses.

Two small accessory bars are available on the top of the matte box, each featuring two 1/4"-20 threads for mounting articulating arms, lights, mics, and other accessories.