Rent a Genus Variable Neutral Density Filter 77mm, Best Prices | ShareGrid Seattle, WA
Genus 82mm Variable ND (Neutral Density) Filter at KEH Camera
Amazon.com : Neewer 67mm Variable Fader ND Filter Neutral Density Variable Filter ND2 to ND32 (1-5 Stop) for Camera Lens NO X Spot, Ultra-Slim, Weather-Sealed : Electronics
Genustech Polarizer ND Variable Filter (77mm) - Pro AV Warehouse
Genustech Eclipse Fader ND filter sets new standard - all for $165 US - Newsshooter
IBC 2015: The Holy Grail of DSLR filmmaking- Genus show prototype lens adapter with built-in electronic ND filter - Newsshooter
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Amazon.com : Genus 77mm Polarizer ND Variable Filter : Electronics
Genustech Eclipse Fader ND filter sets new standard - all for $165 US - Newsshooter