All functions, including autofocus, work properly with Nikkor AF, AF-I, AF-D, and AF-S lenses.
G-type lenses (lenses without aperture rings) can be used with the loss of some functionality: only the lens' smallest aperture can be used in manual or aperture-priority exposure modes.
Read more: F90x - Nikon Product Database[/QUOTE]
The above is what your camera supports... Which exact model of Tamron lens do you have?
DI is a proprietary Tamron feature that doesn't affect the camera's operating characteristics...
