Tilta

Tilta MB-T12-85 85mm Clamp-on Matte Box Backing

Purpose-built 85mm clamp-on backing ring that securely adapts the Tilta MB-T12 matte box to your lens.

$99.00*
In Stock on Amazon.com
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The Tilta MB-T12-85 is a single-purpose accessory designed to bridge the gap between the Tilta MB-T12 Clamp-on Matte Box and lenses with an 85mm front diameter. Matte boxes are essential for controlling lens flare and mounting filters in cinema and video production, but they require a secure mounting solution that matches the specific lens being used. This backing ring provides that connection through a clamp-on mechanism that grips the lens barrel, holding the matte box firmly in place during shooting without relying on fragile filter threads.

Build quality is consistent with Tilta's reputation in the cine accessory market — the backing is machined to tight tolerances for a precise fit that minimizes play or rotation once clamped. Because the MB-T12 system uses interchangeable backings for different lens diameters, shooters can swap between lenses of varying sizes by keeping multiple backings on hand. The trade-off is that each backing is a separate purchase, and the system is proprietary to the MB-T12 matte box. For productions already invested in the Tilta MB-T12 ecosystem, the 85mm backing is a straightforward, necessary component that performs its role without complication.

Key Features

85mm backing for lenses with that front diameter

Works with Tilta MB-T12 Clamp-on Matte Box

Specifications

Brand
Tilta
Model
MB-T12-85
Type
Matte Box Backing
Diameter
85mm
Compatibility
Tilta MB-T12 Clamp-on Matte Box
Mounting
Clamp-on

Pros & Cons

👍 Pros

  • Precisely machined to 85mm for a snug, wobble-free fit on matching lens barrels
  • Clamp-on design allows quick attachment and removal without threading or tools
  • Lightweight construction adds minimal weight to the front of your lens setup
  • Dedicated Tilta design ensures seamless integration with the MB-T12 matte box system

👎 Cons

  • Only compatible with the Tilta MB-T12 matte box, limiting use if you switch to a different matte box system
  • Fixed 85mm diameter means you need separate backings for each lens size in your kit
  • No step-up or step-down versatility — each lens diameter requires its own backing ring
  • Limited utility as a standalone purchase since it serves only as a mounting adapter

Frequently Asked Questions

This backing fits lenses with an 85mm front diameter. It clamps directly onto the lens barrel to mount the Tilta MB-T12 matte box without requiring adapter rings.
No. The MB-T12-85 is specifically designed for the Tilta MB-T12 Clamp-on Matte Box system and is not compatible with other matte box brands or models.
It uses a clamp-on mechanism that tightens around the lens barrel at the 85mm front diameter, providing a secure friction fit without threading into filter threads.
No additional adapters are needed as long as your lens has an 85mm front diameter. For lenses with different front diameters, you would need a different size backing from the MB-T12 range.