As Evelyn Bartram Dudas’s Nikonos III made its way toward the bottom of the Atlantic Ocean one day not too long ago, she did the only thing that made sense to her at the time. She dove after it, retrieving the camera just before it was lost amidst the twisted remains of a shipwreck on the sea floor. Her rapid descent cost her a broken eardrum. It wasn’t the first time this veteran West Chester, Pennsylvania, diver, dive shop owner, and mother of four had suffered at the hands of the sea.