Fader 77mm Variable Neutral Density Filter
Fader ND filter allows you to adjust neutral density freely from ND2 to ND400, providing 2 to 8 stops added density. Perfect for creating a slow shutter speed. With one single filter, you can change to a different density buy simply rotating it. Lens caps and filters can be attached at the front of this fader ND.
Create a slow shutter speed under heavy sun light
Allows the use of a large aperture under bright settings
Easier to control Flash output
Offers 2 to 8 stops added density
No need to carry a bunch of Filters for shooting. One filter gives you the range from ND2 to ND400.