Pentax SMC-DA 55mm F1.4 SDM

Pentax smc DA* 55mm 1:1.4 SDM review

Good balance of optical properties for its intended (portrait) role; Near-silent autofocus thanks to SDM system; Very good build quality, including weathersealing; Relatively slow autofocus; Inaccurate focusing unless using camera's AF adjust, varying in behavior across camera models; Very expensive for its class;