Amazon.com : NEEWER 58mm Fixed ND Filter Kit ND2 ND4 ND8 ND16 Neutral Density Filter and Accessory Kit, Lens Pen, Filter Pouch Included : Electronics
ProMaster Variable ND Filter - 58mm
K&F Concept 58mm ND Fader Variable Neutral Density Adjustable ND Filter ND2 to ND400 for Canon 600D EOS M M2 700D 100D 1100D 1200D 650D DSLR Cameras + Lens Cleaning Cloth -
Amazon.com : K&F Concept 58mm Variable ND Filter ND2-ND32 Camera Lens Filter (1-5 Stops) No X Cross HD Neutral Density Filter with 28 Multi-Layer Coatings Waterproof : Electronics