The Tokina AT-X 116 Pro DX II AF 11-16mm f/2.8 Lens For Nikon [1116PRODXNIK] is an ultra-wide angle autofocus zoom lens with a fast constant f/2.8 maximum aperture. 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. Snapping it forward into autofocus and back into manual focus is all that needs be done, there's no need to adjust the AF/MF switch on the camera body.

A constant f/2.8 maximum aperture benefits working in low-light situations and also aids in creating a shallow depth of field.

An internal silent focusing motor allows the lens to use autofocus on Nikon bodies that do not have an AF drive gear and motor.

Two Super-Low Dispersion glass elements and two aspheric elements, as well as improved multi-coating, achieve excellent sharpness and contrast and reduce aberrations.

The One-Touch Focus Clutch Mechanism offers a simple switch from manual focus to autofocus and back again. The focus ring snaps forward for AF and back for MF. It's operable with one hand and eliminates the need to switch from AF to MF on the camera body.

The New Tokina AT-X 116 PRO DX-II is an update to the widely popular and award winning AT-X 116 PRO DX, 11-16 F/2.8 lens.

The main update to this lens is in the Nikon mount, the AT-X 116 PRO DX-II has an internal silent focusing motor to allow the lens to AF on Nikon bodies that do not have an AF drive gear and motor.

There have also been some adjustments made to the coating for slightly improved optical performance.

This compact ultra wide-angle zoom has a bright constant F/2.8 aperture make viewing and auto focus possible in lower light situations but still maintaining a reasonable size and weight.

Two Super-Low Dispersion glass elements and two aspheric glass allow the proprietary optical design to achieve excellent contrast and sharpness as well as controlling chromatic aberration.

Tokina’s exclusive One-touch Focus Clutch Mechanism allows the photographer to switch between AF and MF simply by snapping the focus ring forward for AF and back toward the lens mount for manual focusing. The lens is also designed to stand up to the rigors of daily use by photographers in a wide variety of shooting conditions and environments.

Other than the optical coating change there are no changes to the Canon mount. The AT-X 116 PRO DX-II for Canon uses the same AF motor and AF drive system as the the previous model.