Introduction The Hoya 55mm Variable Density II Filter minimises the vignette effect often experienced when shooting with wide-angle lenses. In this updated version, Hoya improved the frame of the predecessor Variable Density filter, making it thinner for better handling of vignetting. The filter features a dedicated knob for precision rotation between an adjustable neutral density range of ND3 to ND400 (1.5 to 9 stops). It also allows you to attach an optional lens cap. It supports lens caps that are one size larger than the filter size. Features Thin Frame for Minimised Vignetting ND Range from ND3 to ND400 Dedicated Knob for Precision Rotation Motion Blur of Moving Vehicles/Trains Smooth Motion Effects in Waterfalls Density Guide Markers Lens Cap Support