Camera Lens UV Protection Filter 49mm for Canon EF 50mm f/1.8 STM & for Sony E-mount 18-55mm f/3.5-5.6 OSS Lens - AliExpress
Amazon.com : Canon EF 50mm f/1.8 STM Lens (0570C002) + Filter Kit + Backpack + 64GB Card + Card Reader + Flex Tripod + Memory Wallet + Cap Keeper + Cleaning Kit + Hand Strap + More (Renewed) : Electronics
Amazon.com : Canon EF 50mm f/1.8 STM Lens : Electronics
Amazon.com : 49mm 7PC Filter Set for Canon EF 50mm f/1.8 STM Lens - Includes 3 PC Filter Kit (UV-CPL-FLD) and 4PC Close Up Filter Set (+1+2+4+10) : Electronics
Canon EF 50mm f/1.8 STM Lens 8PC Accessory Bundle – Includes Manufacturer Accessories + 3PC Filter Kit (UV + CPL + FLD) + Lens Cap Keeper + MORE – International Version (No Warranty) - Walmart.com