Amazon.com : JJC 2-in-1 82mm Variable ND Filter & CPL Polarizer Filter, 5 Hard Stops ND2-ND32 Adjustable Neutral Density Filter, Including Moistureproof Storage Case and Lens Cap : Electronics
Amazon.com : JJC 82mm ND Filter ND2-2000 VND Variable Neutral Density Fader for Canon EF 24-70mm f2.8L, EF 16-35mm f2.8L, Nikon AF-S 24-70mm f2.8E, Sony FE 24-70mm f2.8 Lens & Other Lenses
K&F Concept Nano-X ND2-ND32 Filter 49-82mm Variable ND Filter True Color 28 Layers for Camera 49mm 52mm 58mm 62mm 67mm 77mm 82mm - AliExpress