Nikon claims that the special lenses for their DX line and FX line of HDSLR cameras are interchangeable and yes, they do fit the body of the other camera just fine. I'm sure some lenses still give you the expected effect that you're after too. Just be forewarned that using a wide-angle lens on a DX camera that was designed for the FX will give you a cropped photo that won't resemble a wide-angle photo at all. Maybe that's to be expected? I don't know. I wouldn't say they're all interchangeable though.