The pentax 18 270mm f35 63 smc da sdm lens is a high magnification zoom lens that covers everything from wide angle to super telephoto shots driven by a supersonic built in supersonic motor is the sdm autofocus system to ensure quiet smooth and fast operation incorporating two extra low dispersion ed elements in its optics this zoom lens delivers bright high resolution images even at the edges while effectively minimizing chromatic aberration the 18 270mm lens is an all around zoom le