The AT-X 116 PRO DX-II lens is designed for digital cameras with APS-C-size CMOS or CCD sensors. Its angle of view ranges from 104-84? and it can focus as close as 11.8. Nine diaphragm blades help to produce soft out-of-focus backgrounds while two Super-Low Dispersion glass elements and two aspheric elements help to achieve excellent contrast sharpness and minimal chromatic aberration. As an update to their AT-X 116 PRO DX Tokina has improved the multi-layer coatings to minimize light reflection and improve optical performance. This updated PRO DX-II also has an internal silent focusing motor that allows the lens to utilize autofocus on Nikon cameras that do not have an AF drive gear and motor. Tokina's One-Touch Focus Clutch Mechanism allows the photographer to switch between autofocus and manual focus with a simple push of the focus ring.