SMALLRIG 3383 ADAPTER RINGS KIT (52, 55, 58, 62, 86MM) FOR MINI MATTE BOXOptional adapter rings that works with the SmallRig Mini Matte Box 3196. They can quickly be attached to lenses with filter thread 52 55 58 62 86 mm, and serve as fixed support for the Mini Matte Box ###split### The adapter rings adapt the anti drop design, prevent accidental disconnection and ensure safe and reliable shooting when it works with SmallRig Mini Matte Box 3196. They are compatible with a wide range of round filters including CPL and ND