I was out shooting with my new-to-me GX1 today and came across a behavior that I can't seem to correct/change. At this time, I am re-reading the 225 page manual but would appreciate it if anyone could please offer some insight. Maybe I have changed a setting, but if I am in manual mode, when I change a setting like the aperture or shutter speed the view on the display does not change to reflect the new settings, even if I press the shutter button halfway down. For instance, if I stop the lens down from f2.8 to f8 while maintaining the same shutter speed, why doesn't the image on the display become darker? If I change to program mode and change the exposure compensation setting via the thumb wheel to a couple of stops darker, the display gets darker. I don't understand why it can show the effect/change in one instance but not the other. I was wondering if the exposure compensation is just a simulation? That would make sense because it doesn't seem like this camera has a DOF preview function so maybe it doesn't have the capability to preview the aperture shutting down? If so, I don't know why they couldn't provide a simulation in manual mode too. Thanks in advance.