Amazon.com : NiSi 67mm Swift True Color ND-Vario | 1-5 Stops Variable Neutral Density Filter | Adjustable ND, True-to-Life Color, No Vignetting, Optical Glass with Nano Coating | Photography and Videography : Electronics
Amazon.com : Marumi 67 mm Digital High Grade ND64 Filter for Camera : Electronics
Amazon.com : Freewell 67mm Versatile Magnetic Variable ND (VND) Filter System : Electronics
Filtro ND variabile Super Dark Syrp piccolo - 67 mm - Neutral Density- Riduzione Esposizione di 5-10 stop (ND32-ND1024) - Adattatori 52 e 58 e custodia inclusi - Vetro Giapponese di Alta Qualità : Amazon.it: Elettronica
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
Amazon.com : NEEWER 67mm HD Variable ND Filter ND2-ND32 (1-5 Stops) No X Cross/Optical Glass/30 Layer Nano Coated/Ultra Slim Aluminum Alloy Frame/Water Repellent/Anti Scratch Adjustable Neutral Density Filter : Electronics