Amazon.com : Canon EF 50mm f/1.4 USM Standard and Medium Telephoto Lens for Canon SLR Cameras, Fixed : Camera Lenses : Electronics
Canon EF 50mm lens - Wikipedia
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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
What is the Filter Thread Size of Canon 50mm f1.4 USM?