On August 12, a total solar eclipse will sweep across northern Spain, Iceland, Greenland, and Portugal, drawing millions of observers who will instinctively reach for their smartphones to preserve the moment. The impulse to document a celestial event is as old as human wonder itself, but the tools have changed — and with them, the risks and the possibilities. Expert guidance now exists to help ordinary people navigate the gap between what the eye perceives and what a pocket-sized sensor can faithfully record, reminding us that preparation is the quiet companion of awe.