Abi Smigel Mullens is the associate editor of Wetpixel, a premiere online underwater photography community and website. She is also a freelance underwater photographer and writer that has been published in many popular scuba diving magazines. In addition to shooting wildlife underwater, Abi specializes in children’s underwater portraits and runs her own company, Sea Star Underwater Portraits. She is based in the San Francisco bay area and offers this service to clients and swim schools up and down the California coast.

Dr Alexander Mustard, from the UK, has been taking underwater photographs for 30 years and has worked as a full-time underwater photographer for the last decade. His photographs have attracted many awards including being category winners in the Wildlife Photographer of the Year, and in 2013, he was named European Wildlife Photographer of the Year as overall winner of the GDT contest. He was one of the team for the 2020VISION conservation photography project in the UK. He also runs popular underwater photography workshops at top diving destinations around the world. www.amustard.com

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.

David Doubilet is considered to be among the best by editors, peers and colleagues the world over. He has photographed over 60 stories for the National Geographic Magazine where he is currently a Contributing Photographer-in-Residence. David has documented our changing underwater world since his first assignment with the Geographic in 1971. In addition to the Geographic, David’s work continues to appear in countless publications worldwide and he is a contributing editor and feature columnists for the Behind the Shot in Sport Diver Magazine (US) and Seascapes and Dive Magazine (UK). He has authored seven books on the sea, and is the recipient of many prestigious awards, including: The Sara Prize, The Explorers Club Lowell Thomas Award and the Lennart Nilsson Award in Photography. David is a member of both the Royal Photographic Society and International Diving Hall of fame.

Keri Wilk started diving at around 8 and was certified by the age of 12. Around two decades have now passed since he picked up his first underwater camera. With his brother, a fellow engineer, Keri co-owns ReefNet, which creates products that benefit the underwater world, such as optics, data recorders, and marine life ID guides. Keri recently ventured into the field of aerial imaging and started a company called Rotorpixel, which primarily manufactures direct-drive camera-stabilizing gimbals for unmanned aerial systems. After winning over 100 awards in international photo competitions, he now regularly appears on judging panels.