Kase Wolverine ND 0.9 filter Soft Grad filter
Light reduction: 3 stops
Sizes: 150 x 170 mm
Thickness: 2 mm
Includes a pouch
A graduated neutral-density filter, also known as a graduated NDfilter, split neutral-density filter, or just a graduated filter, is an optical filter that has a variable light transmission. … These are used for special effects or to compensate for light falloff that is natural with large optics.