Getting Started with Underwater Photography

Welcome to the wonderful world of underwater photography!
Like most scuba divers, you're probably already enamored with the beauty, mystery and fantasy of the underwater world. Now you're ready to take the next step in joining the ranks of those who share a passion for capturing the essence of these unique environments. Underwater photography can become a lifelong adventure, which will mean something very different to each of us. Whether you intend to take snapshots to show your friends and family, or create fine art renditions of the world below, travel to exotic destinations, or just capture your kids playing in the pool, you have to start somewhere.
So start your journey with the DivePhotoGuide beginner's guide to underwater photography.
Underwater Photography Glossary
A dome port is a concentric glass or acrylic lens used for wide angle underwater photography and does not have the same refraction issues as a flat port, allowing for the same degree of coverage as the lens itself. A dome port creates a "virtual image", which is projected in front of the dome port and forces your lens to focus on the virtual image rather than the actual image. Dome ports come in various diameters, which must be matched to the specific lens used, sometimes requiring an extension ring that sits between the housing and the dome port.