58mm Metal Filter Adapter Ring with UV Filter for Canon PowerShot SX30 IS/SX40 HS/SX50 HS Digital Camera Replacement Canon FA-DC67A Filter Adapter +Tulip Flower Lens Hood : Amazon.ca: Electronics
Fstoppers Reviews the Manfrotto XUME Magnetic Filter Adapters: A Different Take on Threaded Lens Filters | Fstoppers
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 : Amazon.ca: Electronics
Square Filter Holder System X Pro Kit (Filter Holder + 95mm Circular Polarizer + 67/72/77/82mm Filter Adapter Rings) for Camera Lens - K&F Concept
JJC AR-GR3 Lens Filter Adapter Replaces Ricoh GA-1 for Ricoh GR III GRIII GR3 Digital Camera with GW-4 Wide Conversion Lens or 49mm Filter : Amazon.ca: Electronics
18pcs 37- 82mm Step Up Down Camera Lens Filter Adapter Ring Bracket Set Kit 793811897630 | eBay
JJC AR-GR3 Lens Filter Adapter for Ricoh GR IIIx GRIIIx GR3x Digital Camera with GT-2 Tele Conversion Lens Replaces Ricoh GA-2 Lens Adapter, Compatible with 49mm Filter : Amazon.ca: Electronics
NiSi 77mm Adapter Ring for S5 Nikon 14-24mm F2.8/Tamron 15-30mm F2.8