Amazon.com : Lensmate Quick-Change Filter Adapter Kit Compatible with Canon G7X Mark III, Canon G7X Mark II & G7X (Also fits G5X Mark II & G5X) + Hoya 52mm 3-Piece Digital Filter
Lensmate custom kit for RX100 - Cameracraft
BEST ND FILTER ADAPTER FOR THE SONY RX100 VII: MAGFILTER VS LENSMATE - YouTube
Amazon.com : Lensmate Quick Change Filter Adapter Kit 52mm for Sony RX100 VII or RX100 VI : Electronics
Canon G7X Mark III & G7X Mark II (also fits G5X Mark II & G5X) Quick-C – Lensmate : Specialty Digital Photo Products
Leica C-LUX Quick Change Filter Adapter 52mm by Lensmate
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Lensmate Sony RX100 VA Filter Adapter (also fits RX100 V, RX100 IV, III, RX100 I I, RX100) 52mm - YouTube