Originally Posted by drb328
If theres an adapter i would say both ways
the only way a nikon can mount a canon EOS (and focus to infinity) is with a glass element adapter which both acts as a mild teleconverter and degrades image quality. plus EOS lenses are fully electronic controlled so even with a glass element adapter there is no aperture control.
only canon EOS can mount nikon glass without a glass adapter (you still need an adapter like drb328 linked) but the nikon lens will be without AF and G lenses will have no aperture control.