I've got one and am using it with my D300. It reports as "AF-S DX Zoom-Nikkor 12-24mm f/4G IF-ED" in the exif. I hand't noticed this until now, but while my copy of DXO does stuff, it's clearly going to be using the wrong lens profile! I have no idea why the camera/lens combo is reporting this.
Many a time, when an aftermarket company (like Sigma or Tamron or Tokina etc) develop a lens (without the manufacturer's blessings, obviously) that does not have a direct equivalent in the manufacturer's range of lenses, from a FL/aperture standpoint, they "borrow" a lens identifier from one of the known list of manufacturer's lenses. What this will do, is to allow the mount to recognize the product as a valid lens for the mount.
Now this would not be a problem for say a 24-70 f/2.8 HSM Sigma, since there is a direct equivalent of it, in the Canon, Nikon and Sony mounts and thus Sigma can "borrow" the lens ID of the equivalent product from the manufacturer.
Thus you see some of these lenses without a direct manufacturer equivalent, displaying such oddball info in the exif. In your case, Tokina has obviously "borrowed" the lens ID of the 12-24 Nikkor.
This is especially problematic for the AF micro-adjustment available in such cameras, since an "adjustment" is done for a specific lens type (identified by a lens ID). Thus if you have 2 copies of a 50mm f/1.4, the settings will need to be shared, since the body can only have one setting. However, when a lens ID is "borrowed", and when such a Tokina is mounted, the camera goes to the micro-adjusted setting of the 12-24 Nikkor, which obviously would be wide off the mark.
