So, we now have NEX-cameras with a additional dial at the top. But as far as I have seen, it always has exactly the same function as the back dial. So, in Aperture priority for example, both dials control the aperture. When you press down, both dials control the exposure compensation. Is this right? 'Cos if yes, isn't the top dial pointless? I was quite impressed when trying out the NEX-7 because I was able to change every setting (ISO, aperture & exp. comp.) without pressing a button. With two dials, it should be possible to at least change two settings with two dials, right?