PolarPro Helix Variable ND Filter (6 to 9-Stop)

Georges Cameras AU

PolarPro Helix Variable ND Filter (6 to 9-Stop) This Helix Variable Neutral Density Filter from PolarPro is designed for the Helix magnetic filter system and provides an exposure reduction of 6 to 9 stops. It darkens the entire image area, allowing a wider aperture or slower shutter speed than is usually possible. Increasing neutral density offers finer control in available shutter speeds or aperture settings for both still and video applications. Using a longer shutter speed makes it possible t