Twittern Buy HD PENTAX-DA 40mm F2.8 Limited - Options HD PENTAX-DA 40mm F2.8 Limited Black (Ref.: 21390) Buy HD PENTAX-DA 40mm F2.8 Limited Black HD PENTAX-DA 40mm F2.8 Limited Silver (Ref.: 21400) Buy HD PENTAX-DA 40mm F2.8 Limited Silver