My comments have been misunderstood. I am aware of the meter coupling lever. I am not trying to meter. I am just observing the differences between the behavior of the two cameras with a non-AI lens properly mounted (i.e. with the lever flipped upward). Again, when the lens attached, the meter needle shoots straight upward. On the other camera, it does not do this. This puzzles me a bit. Both camera's needles make some type of reaction to light (but, again, this is while simply looking through the viewfinder, and not stopping down via the DOF preview lever).