This is essentially the same question I asked earlier. Perhaps someone will take the time to explain to me the physics or mechanics of getting a shorter adapter for the various non-nikkor lenses that I have. What happens if we have an adapter for the Z7 that has a Nikon-F mount, but is just shorter? In other words, how do we get a wider view (focus range) out of many of the so-called exotic lenses like the APO El Nikkor 105mm?