Amazon.com : Hoya 72mm Variable Density Screw-in Filter : Camera Lens Neutral Density Filters : Electronics
Amazon.com : Freewell (Mist Edition) 72mm Threaded Variable ND Filter Standard Day 2 to 5 Stop : Electronics
Hoya Y5ND4072 - Filtro ND Densidad Neutra x4 de 72 mm HMC : Amazon.es: Electrónica
Tide Optics Filtro ND Variable (ND2 - ND400) Filtro Circular de Lente de Densidad Neutra (72mm) : Amazon.es: Electrónica
Amazon.com : NEEWER 72mm ND/CPL/UV/FLD/Close Up Filter and Lens Accessories Kit with ND2 ND4 ND8, Close Up Filters(+1/+2/+4/+10), Tulip Lens Hood, Collapsible Rubber Lens Hood, Lens Cap, Filter Pouch : Electronics
Amazon.com : K&F Concept 72mm Variable ND2-32 Lens Filter & Filter Cap Kit (2 Pcs) Adjustable Neutral Density Lens Filter with TPU Filter Cap for Lens Filter : Electronics
K&F Concept 72mm ND8 to ND128 Variable Neutral Density Filter, Optical Glass Slim Fader ND Filter NO Spot X Black X 18-Layer Nano Coating ND8 ND16 ND32 ND64 to ND128 (Nano-X Series) :