Following is a list of regular Sport Diving contributors.

Kelvin Aitken
	Kelvin Aitken is a Melbourne-based professional photographer and diver with passion for the big blue and all the big sea creatures to be found out there. He’s dived from the Arctic to the extremes of the South Pacific and if there’s a new marine dive adventure to be experienced or invented, he’s always the first to put up his hand. He’s also dived the southeastern Australian continental shelf and photographed shark species nobody knew would be found out there. Kelvin is a BBC Wildlife Photographer of the Year marine category winner and you can explore his unique work at marinethemes.com
Gary Brennand
	Gary began diving in 1983 in Western Australia and worked his way to an Instructor via part-time work in the industry while working as an IT (computer) manager. He’s since taken up diving full time and devoted all his time to diving. He recently gained the prestigious position of Course Director within the PADI organization. In 2005 he moved to Cairns, Queensland, Australia and has the Great Barrier Reef at his doorstep. He started underwater photography in 2001 with the purchase of a second-hand Sea & Sea MM II with a YS50 strobe on E-Bay. He currently uses a Nikon Coolpix 5000 with a YS90dx strobe but has recently purchased a Nikon D200 SLR which will be housed. Since moving to Cairns his interest in photography has intensified. Number of Dives: 3000+ Places Dived: Papua New Guinea; Sipadan & Kota Kinabalu (Sabah, Malaysia); Ningaloo Reef, Exmouth and Coral Bay (Western Australia); Bali and Lombok, Indonesia; Similan Islands and Phuket (Thailand); Great Barrier Reef, Cairns, Queensland; HMAS Perth & HMAS Swan, Key Biscayne, Swan River and Rottnest Island, Abrolhos Islands (Western Australia), Yongala, Townsville, Queensland, Maravagi and Tulagi (USS Aaron Ward), Solomon Islands. Gary’s photography is on marinedomaindiving.com
Neville Coleman
	Honorary Fellow Australian Institute of Professional Photography; Associate Australian Museum; Consultant Queensland Museum; Project AWARE Honorary Board of Governors ASIA/PACIFIC; 2007 inductee to the SCUBA DIVERS HALL OF FAME. A multi-award winning photographic environmentalist, Neville has been seriously recording the aquatic wildlife of the Asia/Pacific region since 1963. With over 1000 published articles in over 150 magazines, 100,000 images and 60 marine life natural history books (29 self published) to his credit he is one of the most accomplished underwater educational authors in the world. In 1969/73 he led the Australian Coastal Marine Expedition on the first underwater photographic fauna survey ever attempted around an entire continent. Since then he's completed over 160 expeditions throughout Australia and across the Asia/Indo-Pacific, documenting some 12,000 species of aquatic flora and fauna and discovering over 450 new species of marine life. Neville’s scientific collections, photographs and observations have contributed to over a hundred scientific papers and journals, books and magazines. Although Neville’s first love is the sea, he is just as much at home photographing the denizens of Asia/Indo-Pacific’s rainforest jungles, wilderness wetlands, mountain montages, mangrove swamps and the Australian deserts. His expeditions, fauna surveys and teach tours are at the forefront of natural history exploration, education and conservation. Few divers anywhere have contributed as much to the science and literature of marine identification/biology, or the adventure experience of sportdiving. Neville Coleman's Marine Life books can be found at www.nevillecoleman.com.au
Glen Cowans
	Glen was born in Western Australia and developed his passion for the ocean and all that it holds through the unique glimpses of the underwater world afforded by Cousteau, Doubilet and other inspiring pioneers from that era. He began photographing underwater in 1995 and won The Australasian Underwater Photographer of the Year Award in the Novice Category in 1998. Late 2004, his wife Louise, enthusiastic dive buddy and underwater videographer, persuaded Glen to have an exhibition of works showcasing his passion and unique style of underwater photography. In March 2005 the Western Australian Maritime Museum previewed his work and granted a two and a half month exhibition, following which he made the turning point decision to devote his career to underwater photography ending his trade career as an electrician and embarking on a new journey in life. You can see Glen's work at glencowans.com
Ariel Fuchs
	Ariel is a marine biologist who graduated with a PhD on kelp before specializing in field work and scientific missions within the Antarctic regions. He then turned his interest towards the ocean’s dynamics and the interactions between the great oceanic currents, the climate and the history of animal and human settlement, especially around islands. A professional diver and naturalist, he truly believes that photography and television are the most important keys to a better education of a large audience – the only way to make our societies aware of the needs for better protection and preservation of their natural resources.
Bob & Dinah Halstead
	Bob Halstead learned to dive in the Bahamas in 1968, became a NAUI instructor in 1970 and, with his wife Dinah formed Papua New Guinea's first full time sportdiving business in 1977. In 1986 they started the first Papua New Guinea liveaboard dive boat operation "Telita Cruises". Bob and Dinah have explored all the coastal regions of Papua New Guinea underwater, and are continuing to do so. Bob has a species of razor fish named after him, Xyrichtys halsteadi, and has published eight books on diving and marine life, and hundreds of diving stories. Dinah’s goby is Lubricogobius dinah and sand diver Trichonotus halstead was named in honour of both Bob and Dinah. Find out more at halsteaddiving.com
Richard "Harry" Harris
	Harry is a passionate rebreather, cave and wreck diver who got started in the sport in 1979 at Adelaide Skindiving Centre. He commenced taking photos soon afterwards with a Nikonos III, developing his black and white prints in his father's wine cellar! In recent years his photography has focused on the wrecks and caves of the Australasian region, but his work as an anaesthetist and diving medicine doctor has taken him to work and dive in places like the UK, New Zealand and Vanuatu. Mixed gas rebreather diving has opened up a whole new world of photography and exploration for him including the deep wrecks of the New South Wales coast, cave diving in the Kimberley region of Australia, and reef walls of Vanuatu. Examples of his images and published works can be seen at divedoc.net
Pierre Larue
	Pierre, 63, has been living close to the sea since his youth; he discovered diving in the troubled waters of the Moroccan Atlantic coast in 1956 was immediately hooked. An International 2 star Diving Instructor, he dived the Méditerranean and French Indies before coming to New Caledonia 39 years ago as a sports teacher. He was immediately amazed by the beauty of the island and lagoon and settled definitively with his wife Monique and son Frank now 41. Pierre now has two grandchildren who are both divers – Oana 11 and William 16, born and living in New Caledonia. Now retired, he’s specialized in underwater photography since 1962 and is involved in wreck research as a member of Fortunes de Mer Caledoniennes and Association Salomon. He participated in the four last missions in Solomon Islands (wrecks of Laperouse expedition 1788). Author of Plonger en Nouvelle Calédonie (guide to the best dive sites in N.C.), he’s also contributed to diving magazines Apnéa, Plongée Mag, Subaqua, Le Monde de la Mer, Mer et Océan (France), Tauchen, Unterwasser (Germany), Duiken (Nedeerland) , Fun Plongée (Belgium), Diver (UK), Asian Diver (Singapore) and Sportdiving (Australia). Pierre was awarded First Prize in the underwater reports category at the 29th Festival Mondial de l’Image sous-marine d’Antibes 2002. He’s also received the specialized press Palme d’Or: Palmes et Plumes by diving journalists’ association, 6ème Salon de la Plongée de Paris 2004.
Nigel Marsh & Helen Rose
	Nigel and Helen are Australian photojournalist based in Brisbane, Queensland. The couple are married and have enjoyed many dive adventures around Australia, Asia and the Pacific. Nigel has also co-authored two diving guide books with Neville Coleman, including the very popular Diving Australia. For more visit their website nigelmarshphotography.com
Jeff Mullins
	Jeff Mullins has been exploring under the seas of Australia, South-East Asia & the South Pacific for 36 years. He began taking underwater photographs in 1976 and has since been published Worldwide. Jeff was awarded the PADI Hallmark of Excellence Award for Outstanding Contribution to Photo Journalism in 1995. A regular contributor to Sportdiving Magazine, his first article was published in 1979. Currently Jeff and his wife Dawn run Dive Tours and Digital Underwater Photography Courses from their property near Tulamben in Bali - specialising in individuals or small groups of divers with an interest in underwater photography and marine life. Jeff & Dawn have recently published a book titled Reef Wreck & Critter, a pictorial guide to Tulamben's dive sites and marine life. Visit their website at reefwreckandcritter.com.
John Silberberg
	John is a Master Mariner who spends his life on, under and by the sea. He lives with his wife Sandra and their two daughters on the east coast of Tasmania, Australia. In 2005 he discovered underwater photography and started writing about his diving experiences; to his continued surprise, the articles were published! His favourite diving is amongst the deep sponges off Bicheno. He loves the challenge of combining photography with diving and the satisfaction of a dive well done. John gratefully acknowledges the support of Sea Optics seaoptics.com.au and recommends Carey and David as the first stop for anyone wanting honest, professional advice about underwater photography.
Richard Smith
	As a child, British-born Richard, was enthralled by the ocean and its inhabitants. This passion led on to his completing a degree in marine studies. In search of warmer seas he moved to Australia where he completed a masters degree in marine ecology and evolution. He now studies for a PhD on the social behaviour and ecology of the pygmy seahorse, Hippocampus denise. Richard has been diving since 1997 and has travelled the world photographing and studying the ocean realm. Richard runs a website with information about his work and which showcases his images from above and below the waves: www.OceanRealmImages.com
Mark Strickland
	Mark’s life-long interest in the sea has included over 10,000 dives and careers as a lifeguard, boat captain and scuba instructor. His passion for underwater photography has led him to many top dive destinations, including Thailand, where he spent 17 years as Cruise Director/Photo-Pro on a series of liveaboard vessels including the state-of-the-art Ocean Rover. While he still dives whenever possible, Mark now spends most of his time with his family in California. An avid marine naturalist, Mark has discovered several nudibranch species, including one that’s named for his wife Suzanne, Reticulidia suzanneae, and his own namesake Halgerda stricklandi. Mark's photos and articles have appeared in dozens of magazines and books around the world, including BBC Wildlife, Conde Nast Traveler, Geo, National Geographic World, Natural History, Nature’s Best, Outside, and most major dive magazines including Sportdiving Magazine. Mark is also co-author and primary photographer of Lonely Planet’s award-winning book Diving and Snorkeling Thailand. Currently he leads several dive trips each year to his favorite destinations while working on a career-spanning large-format pictorial book. In addition to representation by several stock photo agencies, Mark operates his own photo library, Oceanic Impressions, oceanic-impressions.com
Richard Swann & Joanne Timms
	For many years Richard and Joanne owned and managed Downbelow Dive School UK. As PADI dive professionals, Master Instructor and Staff Instructor they are actively involved in the diving industry on many levels. Their diving careers provide global travel opportunities and after many months spent visiting Sabah in Borneo they decided to make it their home and currently reside in the state capital Kota Kinabalu. Much of their time is now spent collecting Marine and Wildlife Photography throughout the island of Borneo. To see more work from this husband and wife team, please visit their website www.downbelow.co.uk
Paul Walden
	Born and bred in Stockholm, Sweden, Paul spent his childhood reading books by Ron and Valerie Taylor, and dreaming of a future at southern latitudes. Curiously, his early snorkelling experiences in the freezing waters of the northern Atlantic and the Baltic Sea spurred him on. After having taken up diving in the Maldives in 1988, he proceeded to explore the waters of the Mediterranean Sea and the Atlantic, Pacific and Indian Oceans before going professional as a PADI instructor in 1995. Then, in 2003, he realised his dreams and moved from Sweden to Australia. Initially working as a copywriter in Cairns, he has since shifted his focus to freelance writing and photography, with a specialty in nature and wildlife. Photo courtesy Calypso Productions
Stephen Wong & Takako Uno
	Full time husband and wife marine photojournalists since 1997, Stephen & Takako are now based in Hong Kong. Their work has taken them around the globe, from the floating ice of the Arctic Circle to the tip of Argentina. In addition to marine and wildlife journals, Stephen & Takako’s works have appeared in more than 30 photo exhibitions. These include Nikon’s Stephen & Takako Marine Photo Exhibition; Swire Properties’ Wonders in Deep Waters – a Photo Montage of Stephen & Takako & Stephen & Takako’s Form & Dance of the Sea; and MTR sponsored Cetaceans which featured 24 different species of whales and dolphins taken by the couple. Furthermore, their images have been awarded in dozens of photo competitions, including four times in the prestigious BBC Wildlife Photo Contests. Takako has recently discovered a new species of nudibranch, now termed Takako’s Trapania. The couple also has photographed new species of snapping shrimp and octopus. Stephen and Takako’s images have also appeared in many books, including co-authorship of Sipadan-Mabul Islands, Celebrate the Sea and An Ocean Odyssey - the recently published 240-page wide blue pictorial anthology by the couple. For more detailed profiles and their comprehensive photographic works, please visit their websites stephenwong.com & takakouno.com