85x110mm Resin Neutral Density Blender 0.9 (3 Stops) ND 0.9 filter reduces light by 3 Stops Blender filter is a constant graduated ND filter that reaches clear only at the bottom Great for handheld scenes in still and video Made from the highest quality optical resin Compatible with Canon, Sony, Nikon, Tokina, Sigma, Zeiss, Panasonic, Tamron, Samyang, Rokinon and other lens brands