Tian Ya 100mm x 130mm Graduated ND4 Neutral Density Filter - for Cokin – Roxsen.com
Amazon.com : Neewer 67mm Variable Fader ND Filter Neutral Density Variable Filter ND2 to ND32 (1-5 Stop) for Camera Lens NO X Spot, Ultra-Slim, Weather-Sealed : Electronics
TIANYA 67mm Fader ND Filter with 77mm Front thread | eBay
W-Tianya Super DMC ND Fader szűrő NANO bevonattal és vékonyított peremmel 77mm