Tokina 12-28mm F/4 Pro DX AT-X Video (Canon)

Tokina AT-X 412-28 Pro DX CAF VideoWide Zoom RangeThe Tokina AT-X 12-28mmF4lens has a super-wide to standard zoom range while maintaining a constant fast f4.0 aperture. This makes ita very versatile lens for different photo applications such as scenery, street scenes photography and event coverage. The lens is designed for DSLR cameras with APS-C (DX) sized sensors.Auto focus mechanismTokina placed the sensor closer to the drive unit in the lens for faster communication between the controller and AF motor. This combined with the motor's high-precision focus control yields faster, more accurate auto-focus.Additionally, a “SD-M” (Silent Drive-Module) has greatly lowered the sounds emitted by the auto focusdrive system allowing for much quieter AF. It has a built-in AF motor to make the auto-focus compatible with all current camera bodies.Compact body designThe Tokina AT-X 12-28mmF4 compact design makes the lens easy to carry and handle. Manual focus is achieved through Tokina's one-touch focus clutch AFMF mechanism. Simply slide the manual focus ring forward for auto-focus or back for manual focus operation. The lens focus ringis damped in the manual mode for smooth and precise focusing.