Fish are always on the move, darting in and out of focus. While portraits can be challenging, these tips will help you take photographs that truly stand out.

There are two strategies for adding lenses and ports to your interchangeable-lens camera system: traditional lenses with domes, and wide-angle conversion lenses. This guide will help you choose the right one for you.

Clownfish can still win an underwater photo contest if you can create a standout image. Here's how to pull it off.

Macro diopters reduce your minimum focus, magnify the subject and create a crisper image.

We polled thousands of divers—they say these places have the best diving in the world.

Underwater shutterbugs should prepare for wide-ranging conditions in this archipelago of plenty, from World War II wrecks to mantas.

A beginner's guide to how underwater photography snoots work and how to master them.