Tilta MB-T12-104 104mm Clamp-on Matte Box Backing

The Tilta MB-T12-104 is a 104mm clamp-on matte box backing designed exclusively for the Tilta MB-T12 Clamp-on Matte Box system. Its purpose is straightforward: it secures the matte box assembly to the front of a lens with a 104mm outer diameter, providing a stable platform for filter stages, top flags, and side wings that control flare and stray light. The clamp-on mechanism grips the lens barrel directly, so the lens does not need front filter threads to accept the matte box — an important advantage when working with cinema lenses or large-diameter photo lenses that lack threaded fronts.

Build quality is consistent with Tilta's broader accessory line, using machined construction to maintain concentricity with the lens axis. This precision keeps filters properly aligned and prevents vignetting in the corners of the frame. For cinematographers and videographers already invested in the MB-T12 matte box ecosystem, adding the 104mm backing extends the system's reach to another class of lenses. Multiple backing sizes can be swapped quickly on set, allowing a single matte box to serve an entire lens kit.