Amazon.com : JJC Dedicated Metal Filter Adapter Lens Adapter for Sony ZV-1 II RX100 VII VI RX100M7 RX100M6 for Canon G5X Mark II Installing 52mm UV CPL ND Filter,Includes 52mm Snap-On Lens
Canon R7 ND Filter Adapter | Meike RF to EF Adapter and ND Filter - YouTube
Amazon.co.jp: Andoer R-77 77mm Camera Lens ND Filter Adapter Ring Metal Rapid Filter System for Canon Nikon Sony Olympus DSLR Camera : Electronics
IBC 2015: The Holy Grail of DSLR filmmaking- Genus show prototype lens adapter with built-in electronic ND filter - Newsshooter
NEEWER Magnetic Variable ND Filter with Adapter Ring - NEEWER – neewer.com
Amazon.co.jp: KIPON EF-MFT AF ND AF-Mount Adapter with Variable ND Filter for EF Lens to Micro Four Thirds Body Auto Focus Firmware : Electronics
BEST ND FILTER ADAPTER FOR THE SONY RX100 VII: MAGFILTER VS LENSMATE - YouTube
Fotodiox Vizelex ND Throttle Adapter Canon EOS to MFT Mount + ND Filter
Amazon.com : Step Up Lens Filter Adapter Rings - Set of 9 - Allows You to Fit Larger Size Lens Filters on a Lens with a Smaller Diameter - Sizes: 37-49, 49-52, 52-55, 55-58, 58-62, 62-67, 67-72, 72-77, 77-82 mm : Electronics
MEIKE MK-EFTR-C EF-RF Drop-in Filter Mount Adapter for Canon EF to EOSR with Variable ND Filter and UV Filter
Canon Drop-In Filter Mount Adapter EF-EOS R with Variable ND Filter by Canon at B&C Camera
NDT Fusion Auto Adapter - Canon EF Lens to L-Mount Cameras w/ Variable ND – Fotodiox, Inc. USA
Amazon.com : Meike MK-EFTE-C VND Drop-in Filter Auto-Focus Mount Lens Adapter for Canon EF/EF-S Lenses to Sony E Mount Cameras with Variable ND Filter and UV Filter A7SII A7 A6000 A6500 A7SIII
KIPON Mark 3 Neutral Density Autofocus Lens EF-S/E AF ND MARK 3