Is there a 3D lens attachment I can buy for my nikon d80 digital camera?
There is a company that sells that ... I think Pooky has one.http://www.berezin.com/3D/3d_lens.htm
Nikon N50 film camera body with several nice lens Is there a digital camera body these lens will fit on?
Will a Nikon 35mm SLR film camera lens fit a Nikon digital camera?
Yes, if your camera has the detachable lens option (lens' are able to be removed from the base of the camera). All brands that are the same as your camera will fit.
Will nikon 28 200mm lens fit on nikon digital camera?
Will a Nikon 35mm lens fit a Nikon D50 digital camera?
Yes as long as it's not pre AI