Wide Compatibility. The Wooden Camera UMB-1 Clamp On Matte Box features a 143mm opening and includes a set of clamp-on adapter reduction rings that lets you use it with cine lenses with diameters ranging from 80mm to 136mm. This means you can attach the matte box to a wide range of cinema lenses, such as the Zeiss CP.2s, Zeiss CP.3s, Sigma Cine lenses, and Canon CN-E primes.

Rotating Filter Stages. The UMB-1 features two rotating filter stages with 4 × 5.65” filter holders, giving you flexibility when using circular polarizing or split ND filters.

NATO Accessory Rails Included. This matte box includes NATO accessory rails on the left, right, and top, making it easy for you to mount accessories.

Top & Side Flags. With our kit, with include both a folding top “French flag” and adjustable side flags. These are handy for blocking lens flare and preventing light leak. If you don’t need them, they are quick and easy to remove.