The SmallRig Mini Matte Box Pro 3680B is designed for video production with mirrorless cameras. It effectively reduces stray light and maintains image quality by blocking light spill from sunlight and other sources. This matte box features two 4 x 5.65-inch filter slots that can be quickly mounted using a NATO clamp and support multiple stacked filters.

The top flag can be opened up to 180°, while the side wings can extend up to 40° to create an expanded blocking area. The side flag can be attached to either the matte box or the filter tray using a NATO clamp and can also be opened up to 180° to block stray light.

The package includes four adapter rings (Φ67–95 mm, Φ72–95 mm, Φ77–95 mm, Φ82–95 mm), allowing for direct mounting on cinema lenses with a 95 mm outer diameter or attachment to lens filters of mirrorless cameras (compatible with filter sizes Φ67 mm, Φ72 mm, Φ77 mm, and Φ82 mm). A carrying case for easy storage of the matte box and filter trays is also included.