We're on a long trip amd taking lots of photos. Suddenly, with the camera set on auto as always, as soon as the frame is in focus, the frame goes mich darker, regardless of how much ligjt may be available, always resulting in a too dark picture, even without any shade. Battery change made no difference.
What is this and how can we correct? Could we have hit a button or changd a setting be mistake? Basically anything we try to take now is useless.