Amazon.com : 55mm Variable Neutral Density NDX Filter for Sony Cyber-Shot DSC-HX400 : Electronics
Amazon.com : K&F Concept 55mm Variable ND Lens Filter ND2-ND400 (1-9 Stops) 18 Multi-Layer Coatings Adjustable Neutral Density Ultra Slim Lens Filter for Camera Lens (K-Series) : Electronics
Okko 55mm Variable Neutral Density Filter OKKO-PRONDV 55MM B&H
Amazon.com : 55mm ND Variable Neutral Density Filter for Sony 35mm f/1.8 DT SAM Lens : Electronics
Hoya 55mm Variable Density II Filter A-55VDY-II B&H Photo Video
ND2-400 (9 Stops) Variable ND Filter Neutral Density Filter for Camera Lens - KENTFAITH
K&f Concept No X Spot Nd8-nd128 Neutral Density Filter Slim Fader Graduated Nd Filter For Camera Nikon Canon Lens 40.5mm/55mm - Camera Filters - AliExpress
K&F Concept 37/40.5/43/46/49/55mm ND Variable Filter ND2 to ND32 NO X Spot | eBay
Bower 55mm Variable Neutral Density Filter FN55 B&H Photo Video
Variable ND Filter - 52VND – The Tiffen Company
55mm Variable Neutral Density Nd2 To Nd400 Fader Nd Vario Graufilter Filter 55 Mm For Nikon Canon Sony A200 A450 A300 18-55mm - Camera Filters - AliExpress