Berkley White is a leading expert in the field of underwater photography and digital image processing. As a professional photographer and instructor, he shares his in-field photographic techniques and digital methods through a series of select travel events each year. Berkley is the founder of Backscatter in Monterey, California, the largest specialty underwater photographic supplier in the US, and is the organizer of international photographic events such as the Digital Shootout.

Brian Skerry is a photojournalist specializing in marine wildlife and underwater environments. Since 1998 he has been a contract photographer for National Geographic Magazine covering a wide range of subjects and stories.

An award-winning photographer, Brian is praised worldwide for his aesthetic sense as well as his journalistic drive for relevance. His uniquely-creative images tell stories that not only celebrate the mystery and beauty of the sea, but also help bring attention to the large number of issues that endanger our oceans and its inhabitants.

Dr Alexander Mustard is both a marine biologist and also as part of a 'new wave' of up-and-coming young underwater photographers who have challenged our perceptions of what we see underwater, Alex has won many awards for his photography including being a multiple winner in both the BBC Wildlife Photographer of the Year and World Festival of Underwater Photography in Antibes, France. His new book "The Art Of Diving," a collaboration with author Nick Hanna, is not just a photo collection but is an exploration of why we love to dive, and has been described by David Doubilet as "the best book about diving since Jacques Cousteau's The Silent World." He is founder of the Young Underwater Photographer's Group, the Digital Officer for the British Society of Underwater Photographers and a Co-Administrator of Wetpixel.com. Alex is also the brains behind Magic filters - filters designed specifically for available light underwater photography with digital cameras.

More about Alex at http://amustard.com

Eric owns and runs Wetpixel.com, the premiere online resource for underwater photographers. Hosting over 6,150 registered underwater photographers internationally, Wetpixel's friendly community offers breaking news, reviews, features, community forums, image galleries, photo contests, photo expeditions, and more.

Eric's underwater images can be found on personal website: http://echeng.com/travel/

Even at the age of 27, Keri has accumulated 17 years of underwater photography experience. Being formally educated as a mechanical engineer, he currently co-owns and develops products for ReefNet, has been a regular contributor to DivePhotoGuide.com since 2009, and does freelance work for several popular dive magazines.

Keri's photography has evolved to a tremendous degree since he took his first underwater shots. He began his career by shooting images to be used primarily in ReefNet's electronic marine life field guides, but soon grew bored of the monotony of clinical side-profile identification shots. Wanting more from his time underwater, he expanded his photographic horizons, hoping to capture images of interesting and unusual behaviors in the underwater world. His success in this field was impressive, winning him several international underwater photo competitions ñ while still a teenager.