67mm Adapter as Canon FA-DC67A + Pro1D UV Filter + Hood + Cap PowerShot SX50 HS | eBay
Metal FA DC67A Adapter Camera Lens Adapter Ring For Canon PowerShot SX520 SX50 SX60 SX70 HS Reinstallation 67mm Filter|lens adapter ring|adapter ringlens adapter - AliExpress
58mm Metal Lens Filter Adapter Ring for Canon SX70 SX60 SX50 SX40 HS SX30 SX20 SX10 SX1 is Replaces Canon FA DC67A Adapter Ring| | - AliExpress