Hoya 55mm Variable ND Filter
• Filter Factor NDx3-NDx400
• Approx 1.5 to 8.5 stops light reduction.
• Black Almite Frame with satin finish to reduce reflections.
• Low Profile Frame – avoids vignetting on super wide-angle lenses, will accept a clip-cap.
• Rotating inner filter ring with scale indicating max. through to min. settings