On my Canon DSLR, I could put the camera in M mode, keep ISO in Auto, and set both the Av and Tv values. This way I had control over both the shutter speed and the depth of field, and the camera would adjust ISO to compensate for the metered exposure. Great for e.g. action shots. I don't see a way to do it on the Nex F3, i.e. to be able to select shutter and aperture and letting camera to take care of the rest. In M mode I have to set all three values manually. Am I missing anything, or is this a limitation of the system ?