A thread called The XR Rikenon 50mm f2 sharpest 35mm lens claim got me very intrigued about this lens. At a glance it seemed to me to be comparable to a Pentax-M 50mm f1.7 in that it is said to possess a good sharpness wide open and goes for very cheap on ebay. When one came up on a Finnish photography forum for 30€, I knew I had to buy it to see if there was anything to the talk. Only when the lens arrived, I noticed it was the Ricoh XR Rikenon 50mm f/2 S.
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