Hoya 77mm Variable Neutral Density Filter ND2 to ND400The Hoya 77mm Variable Neutral Density (ND) Filter offers photographers and videographers precise control over exposure by allowing continuous adjustment of light reduction from 1. 5 to 9 stops. This versatility is ideal for a variety of shooting conditions, from bright sunlight to long exposure shots. The variable ND filter lets you achieve motion blur, wider apertures, and balanced exposures without changing your settings or overexposing your