Hello Gabrial.
I have the Nikon D2x Camera, mine has been custom to full spectrum for astro imaging.
You need a camera to telescope adapter and set your exposure time to BULB you will also need a electronic cable release.
http://www.adorama.com/PH18320.html
If you read the Nikon D2x Camera manual it will explain hot to do the settings.
Regards
Geoff