2012-02-08 Pentax Ricoh shows off lenses in development for K, Q and 645 mounts at CP+: Digital Photography Review Pentax Ricoh shows off lenses in development for K, Q and 645 mounts at CP+: Digital Photography ReviewKマウント50mmF1.8が気になるな。50mmにしてはすごく明るいほうではないが、F1.8なら十分だろう。安いのかな。
