With this Hoya Variable ND filter you have a variable ND filter with which you can determine the strength / light transmission yourself. By simply turning the filter you make the light that falls on your camera sensor lighter or darker. This allows you to play with shutter speeds and aperture, even in full sun. One of the possibilities that you get with this filter is taking pictures with a slow shutter speed. This allows you, for example, to capture a waterfall as a veil of water. The Hoya Variable ND filter is also ideal for making film recordings. So you can work with a small aperture on a bright day in combination with the Hoya Variable ND filter, so you can creëren a nice sharp depth effect. The filter can be set between 1.5 stop and 9 stop lighting.