I borrowed my sons 50mm 1.8, just to see, me being new to Canon. I was very impressed. Many people say 50mm's 'are old hat', not a word of truth there. My local camera shop had a mint, pre-owned Mk 1, with metal mount. Always were dearer, because of the mount. I bought mine at a 'snip' price. It is brilliant, in everything from feel, build and performance. Highly recommended.