This 4 to 9-stop 77mm Haida NanoPro Variable ND Filter provides an exposure reduction of 4 to 9 stops. The 1.2 to 2.7 optical density creates a darkening of the entire image allowing you to photograph with a wider aperture or slower shutter speed...
This 4 to 9-stop 77mm Haida NanoPro Variable ND Filter provides an exposure reduction of 4 to 9 stops. The 1.2 to 2.7 optical density creates a darkening of the entire image allowing you to photograph with a wider aperture or slower shutter speed...