BT Threaded Donut Rings

Designed for smaller lenses, Bright Tangerine’s range of Threaded Donut Rings work to step up smaller lenses for pairing with ARRI-standard matte boxes. Lightweight and durable, the Rings come in a range of inner donut sizes between Ø67mm and Ø95mm.

• Step Up – The Donut Rings bridge the gap between 114mm matte boxes and smaller lenses.
• Frame Safe – The Rings are designed to minimise interference whilst being easy to attach to lenses.
• Lightweight and Durable – Made from precision-cut aluminium, each Ring is long-lasting and lightweight.