APT can control most of the Nikon DSLRs (except the models 3xxxx):
The cameras D5000, D5100, D7000, D700, D300(S), D90, D80, D60, D40 require additional cable to control the shutter/bulb exposure.
The cameras D200, D80, D60, D40, D3S require APT to be started in Windows Vista SP2 compatibility mode. To that right click on the APT icon, select Properties and go to Compatibility tab.
The other Nikon models have no special requirements.
Various information about the supported Nikon models can be found in the Nikon Matrix page on the APT site.
