My favorite implementation of Auto ISO to date is that on the Nikon bodies. In aperture priority mode, you simply choose a minimum shutter speed and a maximum ISO, and the auto ISO does the rest. In manual mode, you simply choose the max ISO, and the auto ISO just works. It's simple as can be, and I don't understand why other companies don't do it this way. Auto ISO on my GH1 is a frustration. If I mount a manual focus, adapted lens and choose auto ISO, it assumes I want a minimum shutter speed of 1/30s. If I switch to manual mode, auto ISO stops working. With a 50mm lens and no image stabilization, that means auto ISO is basically worthless to me since I can't handhold steady at 1/30s. How is auto ISO implemented on the NEX bodies?