Brand  Ex-Pro  Ex-Pro ND Filter set complete with case. Includes ND2, ND4, ND8 neutral density filters. Ex-Pro lenses are double threaded allowing you to install them in addition to other lenses you already have installed (For example a UV lens). Includes Nylon folding filter wallet to keep lens clean and safe. ND Neutral density filters are used to create some very special effects such as the blur on running water…