Our successful range of F:X Pro filters has gained extremely practical growth. And this time its a filter that comes with a really exciting innovation. Because here you get an ND filter, which is not only designed for one strength, but is completely variable. This means that you can freely adjust the filter between the strengths ND8 and ND512 to any motif situation. So that you can also adjust the thickness you need, we have attached the aperture steps between 3 and 9 on the side of the filter. Do you want to photograph a sunrise and a tourist attraction and usually need two different thicknesses? No problem. The variable ND combines both required strengths