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Aluminium step-down ring with split clamp design, matte black finish

Movcam

Movcam professional video device

SKU CH-XKV7-V6WYC

A split clamp-on ring adapts 144mm matte boxes to accept 95mm lenses securely

  • Adapts 144 mm matte boxes to 95 mm lenses
  • Split clamp design gives secure, wobble-free mounting
  • Locking pin prevents slippage during intensive shoots
  • Durable construction withstands demanding production use
  • Lightweight build preserves camera balance and maneuverability

Lens-to-Matte Box Adapter

The Movcam 144:95mm Step-Down Ring connects 144mm clamp-on matte boxes to 95mm lenses. It is built for cinematographers and camera operators who need to use smaller-diameter glass with larger matte-box systems. The split-ring design clamps securely around the lens barrel without requiring rear threads on the matte box adapter. This accessory suits professionals working in studio or location environments where lens changes are frequent.

Split Clamp with Locking Pin

The ring features a split diameter that widens for easy mounting and tightens for a wobble-free fit. A side locking pin on the matte box engages the ring to prevent slippage or rotational misalignment during operation. This mechanical interface replaces the need for threaded rear adapters, allowing the matte box to seat firmly on lenses that would otherwise be incompatible. The design keeps the connection stable during handheld or gimbal-mounted shooting.

144mm to 95mm Reduction

The adapter bridges a 144mm matte-box opening down to a 95mm lens front, covering that specific diameter gap. It adds minimal mass to the front of the camera, preserving balance for extended takes. The construction tolerates repeated mounting cycles on professional productions. It does not adapt other lens diameters, support threaded filter rings, or integrate with matte boxes that require a threaded rear mount.

Highlights

  • Adapts 144 mm matte boxes to 95 mm lenses
  • Split clamp design gives secure, wobble-free mounting
  • Locking pin prevents slippage during intensive shoots
  • Durable construction withstands demanding production use
  • Lightweight build preserves camera balance and maneuverability

Specifications

No published specifications for this item yet.

Questions about this item

Will the split clamp mechanism or locking pin wear out and need replacement?

The split clamp and side locking pin are built from high-quality materials rated for rigorous daily use, so no scheduled replacement is expected.

What stops me from using lenses larger than 144 mm or smaller than 95 mm with this ring?

The ring only bridges 144 mm clamp-on matte boxes to 95 mm lenses; larger or smaller diameters physically cannot engage the split mount.

Does the metal ring get hot or add noticeable weight during all-day handheld shooting?

Its lightweight design keeps added mass minimal and the aluminium body stays at ambient temperature, so heat and fatigue are not concerns.

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