I want to convert my Canon 50mm 1:1.8 lens to macro. What is the best way? Should I use a reverse ring or an extension tube? What is the difference? - Quora
Canon RF 50mm f/1.8 STM | PRO.Laika
Too Good to be True? - Canon EF 50mm F2.5 Macro - YouTube
Canon EF 50 mm f/1.8 II review - Introduction - LensTip.com