sea turtles

We see this happen all the time here in Hawaii: Tourists go snorkeling -- sometimes for the first time in their lives -- and they are excited by what they see. They decide they want to take pictures of all the pretty fishies and corals to show their friends back home. They buy a single use waterproof camera, they snap away, and they are sorely disappointed when they see the result. Most of the photos are blurry, and though they thought they were shooting in color, all of the images are monochrome -- blue monochrome. For quite a few reasons, taking photos underwater is very different from…