Amazon.com : Hoya 58mm PROND ND 1000 Neutral Density Filter for Camera : Electronics
K&F Concept 58mm ND1000 (10-Stop Fixed Neutral Density Filter) ND Lens Filter, 28 Multi-Layer Coatings Waterproof Scratch Resistant Super Slim for Camera Lens (Nnao-X Series) : Electronics - Amazon.com
Amazon.com : Neewer 72mm ND1000 ND Lens Filter, Neutral Density Lens Filter with 10-Stop Optical Glass and Super Slim Black Matte Frame for Camera Lens : Electronics
Amazon.com : K&F Concept 58mm ND8 (3-Stop Fixed Neutral Density Filter) ND Lens Filter, 28 Multi-Layer Coatings HD Hydrophobic Ultra Slim Nano-X Series Filter for Camera Lens : Electronics