Shoot with an ND filter on your phone. This set combines our pro quality ND filter with our 37mm Filter Mount. The set will then attach to your phone using a Moment Case. ND Filters are the secret sauce to controlling your exposure. They’re super important if you’re going for the most cinematic image. We’re shooting in different conditions all the time, which means a wide range of lighting situations. Like sunglasses for your camera, they give you ultimate control over the light hitting your sensor, and that means slower shutter speeds, giving you that slight, cinematic motion blur in your clips.