Amazon.com : NEEWER 67mm Magnetic Variable ND Filter ND2-ND32(1-5 Stops) with Magnetic Adapter Ring, HD Adjustable Neutral Density Filter with Water Repellent Double Sided 30 Layer Coatings, No X Cross : Electronics
67mm Variable ND
Hoya Filtre ND Variable 67mm
MARUMI ND filter 67mm Creation Vari ND 67mm variable light quantity adjustment equivalent to ND2.5-500 - Walmart.com
Tiffen 67mm Variable Neutral Density Filter 67VND B&H Photo Video
Amazon.com : 67mm ND Variable Neutral Density Filter for Sony 24-70mm f/4 ZA OSS Vario-Tessar T* Lens : Electronics
Hoya Filtre ND Variable 67mm
PolarPro 67mm Peter McKinnon Signature Edition II 67-2/5-VND-ED2