The scene is Notre Dame Cathedral in Paris, during the middle of an evening service. You see a person standing to one side of the alter, in the transept, looking across at one of the massive rose windows. The digital camera comes up, the window is magnified as much as possible, and then there is a sudden flash that distracts every one of the hundreds of the people in the cathedral but doesn’t provide nearly enough light for a proper exposure. On the camera’s screen, a very underexposed version of the window appears.
Normally, this is the end of things. Some people go on from here to deactivate their flash and take a second photo. This one is both hopelessly grainy (because the camera has automatically chosen the highest possible ISO setting) and completely blurred (because hand-holding a 1/2 second shot of a distant magnified object inside a darkened cathedral doesn’t work).
Obviously, I am someone who appreciates the practice of photography. As such, it pains me triply to see people taking photos in a distracting way, poorly, and in a space where such touristic incursions aren’t polite or appropriate.
Moral of the story: your flash cannot illuminate Notre Dame Cathedral. It cannot illuminate the Super Bowl or the moon either. If you are photographing these things, have the kindness, intelligence, and courtesy to turn it off. Then, make sure to at least brace against a wall, to help deal with the long exposure.