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Amazon.com : PROfezzion 82mm Variable ND Filter, ND2-ND400 (9 Stop) Fader Multi-Coated Adjustable Neutral Density Filter for Canon EF 24-70mm f2.8L /Nikon AF-S 24-70mm f2.8E Lens & Other Camera Lenses : Electronics
Amazon.com : K&F Concept 77mm Variable Fader ND2-ND32 ND Filter and CPL Circular Polarizing Filter 2 in 1 for Camera Lens No X Spot Waterproof Scratch Resistant (Nano-X Series) : Electronics
Amazon.com : PolarPro 82mm Peter McKinnon Variable ND Filter | Signature Edition II (2-5 Stop) : Electronics
Amazon.com : Fotga 52mm Slim Fader Variable Adjustable ND2 to ND4 ND8 ND16 ND32 ND400 ND Neutral Density Filter for Nikon Canon EF-S 24mm F2.8 Sony Panasonic Olympus Fujifilm DSLR Cameras Lenses :
Amazon.com : Freewell (Mist Edition) 82mm Threaded Variable ND Filter Standard Day 2 to 5 Stop : Electronics
Amazon.com : Haida 2 in 1 CPL + VND Filter for Camera Pro II Multi-Coating Circular Polarizer + Variable Neutral Density SLR Camera Lens Filter Waterproof Scratch Resistant Nano-Coating Filter 82mm : Electronics
Amazon.com : PROfezzion [2 in 1] 82mm ND Filter [ND2-ND32] and CPL Polarizer Polarizing Filter, Variable Neutral Density Adjustable Fader with 5 Hard Stops for Canon/Nikon/Tamron/Sigma Lenses : Electronics