Allows 82mm threaded filters to be used on lenses with 62mm standard filter threads. Features a durable brass frame. Knurled sides provide an easier grip. Designed to prevent binding and jamming, making it easier to remove than standard aluminium step-up rings. Has an anti-reflective treatment inside the frame to minimize reflections. Features a matte black finish. The anti-reflective treatment makes the ring suitable for long exposures.