KipperTie Revolva - RED Lens Mount With Built In ND Filter Wheel | CineD
KipperTie Drop In Rear ND Filters For The Red Raven | CineD
Haida 100 x 100mm Red Diamond ND 3.0 Filter (10-Stop) HD4271 B&H
Variable ND filter for film — Cinefade
Neewer 82MM Ultra Slim ND2-ND400 Fader Neutral Density Variable Adjustable Lens Filter for Camera Lens with 82MM Filter Thread Size, Made of Optical Glass and Aluminum Alloy Frame(Red) | Neewer | Photographic