PROMASTER HGX PRIME 72MM VARIABLE NEUTRAL DENSITY LENS FILTER | Rockbrook Camera
NiSi 72mm Variable Neutral Density 1.5-5 Stop Filter NIR-VND-72
Zomei 72mm Fader Variable Nd Filter Adjustable Nd2 To Nd400 Nd2-400 Neutral Density For Canon Nikon Hoya Sony Camera Lens 72mm - Camera Filters - AliExpress
Amazon.com : B + W 72mm XS-Pro Vario Neutral Density MRC Nano Filter - 0.3 to 1.5 (1 to 5 Stops) : Electronics