SmallRig Lightweight Matte Box is designed to block the sun or other light source in order to prevent glare and lens flare, with interchangeable mounting systems that suit cinema or DSLR lenses. The matte box comes with a 114mm clamp that allows you to mount it directly onto a 114mm cine lens, and the included 67-114mm, 72-114mm, 77-114mm, 82-114mm threaded adapter rings allow you to use the matte box with lenses of different diameters. Separately available 95-114mm Adapter Ring 2661 can be used for cine-style lenses. It supports up to two standard 4 x 4” or 4 x 5.65" filters with 4mm thickness without the use of filter trays and features two independent thumbscrews to keep the filters in place. The filters can be easily pushed out from the side without leaving fingerprints on the filters by unscrewing the top thumbscrew. An included carbon fiber top flag helps block veiling glare or bright reflections from striking your lens and can be folded down to cover the front of the matte box as well as provide protection to the front of your lens. The matte treatment of the matte box is anti-reflective designed to prevent internal reflections from strong light sources. Featuring four 1/4"-20 threads on the top that allow you to mount additional accessories. Besides, this matte box can be configured to fit on 15mm LWS rods with the separately available 15mm Rod Clamp 2663.