The Nikon mount AT-X 124 PRO DX II has a built-in AF motor drive. The motor inside the lens was loaded onto the Nikon mount specification anew. The AF operates smoothly and quietly due to a DC motor that uses a new AF control gear assembly. With the built-in motor, the lens can be used in AF mode with the Nikon D60 and D40 and other silent wave bodies.
The Canon version of the lens already has a built-in AF motor and will benefit from the improved multi-coating.
The optical system of original AT-X 124 PRO DX won awards for its sharpness world-wide. This design was maintained in the AT-X 124 PRO DX II and improved with the introduction of new multi-coating_ system. The new multi-coating helps reduce reflections that can cause flare and ghosting even more than in the AT-X 124 PRO DX.
The AT-X 124 PRO DX II features the one-touch focus clutch mechanism. _ To use the one-touch focus clutch mechanism, move the focus ring forward, towards the front of the lens, for AF or back for MF. This allows for a fast and easy manual over-ride in difficult lighting situations.
Digital single-lens reflex DX lens_ dedicated to digital SLR cameras with APS-C sized sensors.


“ Less expensive by far than Nikon’s or Sigma’s 12–24mm, Tokina’s optical quality is unsurpassed.”
Popular Photography lens test article published April 2005

Specifications
Focal Length	12 - 24mm
Maximum Aperture	f/4
Minimum Aperture	f/22
Construction E/G	13 Elements in 11 Groups
Coatings	Multi-layer
Angle of View	99 - 61°
Minimum Focus Distance	1.0 ft (0.3 m)
Macro Ratio	1:8
Zooming System	Rotary Type
Aperture Blades	9
Filter Size	77mm
Lens Width	3.5 in (87.88mm)
Lens Length	3.5 in (88.90mm)
Weight	1.2 lbs (540g)
Lens Hood	BH-777 Star bayonet hood
Mounts	Canon APS-C, Nikon APS-C
Notes	The lens is designed for Digital cameras with APS-C sized CMOS and CCD sensors (DX) , not designed for cameras with Full Frame sensors (FX).
Warranty	3 Year Limited Warranty