Can film cameras and digital cameras be universal?
Just do not know whether your original lens can automatically focus, if not automatically focus on the D90 can only manually focus and manually set the aperture shutter.
Nikon d90 camera is good, in addition to the lower pixel some other aspects are good, you can also use your original lens.
Nikon and Canon's body lens can not be interchangeable, it was said that the transfer ring can be, in fact, in addition to some special fans who play no one to play practical.