English: Comparison of Canon's early types of breech-lock SLR lenses of the first Canon Super-Canomatic or R mount to the second variant FL mount lens. The Canon FL 28mm against the Canon R 50mm as seen from the front of the lenses.
Svenska: Jämförelse av skillnader mellan Canons första två varianter av manuella objektivserier för spegelreflexkameror; Canon Super-Canomatic R fattning och Canon FL fattning med Canon FL 28mm mot Super-Canomatic R 50mm sett framifrån.
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