| Member | Profile | Website | Country | Portfolio |
| Alessio Oddo | Nikon D90, Diveross housing, 2x sea&sea Ys110a 85mm macro - 10-24 | |  Italy |  |
| |
| Noriyuki Otani | I sue sea&sea 2G now. I atarted taking u/w photo, about 15years ago. I mainly taking u/w photo at Owase Mie Japan. We can enjoy watching many kind of soft coral. | My Website
 |  Japan | |
| |
| Selcen Ozturkcan | Shots by Canon G11 and WP-Fuji
| |  Turkey | |
| |
| Calvin Oosthuysen | I use a Sea&Sea DX-2G, I have been at it for about 6monthes now.. I generally dive in and around Druban, South Africa, but my favorite site is Sodwana, South Africa. | |  South Africa | |
| |
| Ernesto Ortega | I´m a photographer as a full time profession from the Riviera Maya
I do most of the time pictures from the "Cenotes"
I use a old rusty loved G9 powershot with the Canon UW housing. | |  Mexico | |
| |
| Paul Olson | I moved to St. John in May of 2010 and have snorkeled most of the bays here. I have not started diving yet, but is one of my goals. | |  Virgin Islands U.S. | |
| |
| Ximena Olds | I have been taking photos for almost a year and quickly scalated from borrowing a P&S to a Nikon D7000 with 105 mm on Ikelite housing with a movie 161 as Main strobe and Ikelite 51 as secondary strobe. I also have a Subsee 10+ that I have been having fun with lately. | My Website
 |  United States | |
| |
| Dr onacloV | N/A | |  Australia | |
| |
| ozkan ozturk | come | My Website
 | Turkey | |
| |
| Rene Oude Avenhuis | Canon 350D with Ikelite housing and 2 DS160 Substrobes
Lenses 60mm EF-S Macro / 18-55mm EF-S USM
Canon S5 IS with Ikelite housing
Canon HG20 camcorder with Ikelite housing and 50 watt video light | My Website
 |  Aruba | |
| |
| Zuhtu Ozcelik | Video and Photogragpher | My Website
 | Turkey | |
| |
| Sinan Oztan | Sony DSC-T300 with MarinePack, Taking U/W Photos since 2006 | | Turkey | |
| |
| Thomas Ozanne | I have been taking pictures underwater since May 2008. I am using a Nikon D300 in a Subal housing. Lenses: Tokina 10-17, Nikon 12-24, Nikon 105mm. Occasionally combined with a 1.4 Teleconverter. I use 2 Inon Z240 Stobes.
Locations to date: Similan Islands, Thailand. Bali and Lembeh, Indonesia. Sipadan, Malaysia. Republic of Palau. Egypt. | My Website
 |  United Kingdom | |
| |
| I.Cem Ozoral | I use nikon d300. still holding Sea&sea MM IIX and SX 1000tl I'm u/w photographer since 2000. My favorite dive site Lembeh straight at Endonosia.
| My Website
 | Turkey | |
| |
| Reidar Opem | I am a norwegian who don't like winters. To solve this i always spend at least one month each year in Indonesia. Currently Lembeh, North Sulawesi is my favourite. I shoot with a Canon 5D mark II with housing from Aquatica.
| |  Norway | |
| |
| Eric Orchin | Hi, I have been diving since 2002.. My first dive was more a chance thing as I was snorkling I was asked by a dive instructor who had a spare rig did I fancy it. After my dive I just could not get enough. I have around 1000+ dives . I won BSAC photographer of the year in 2007. The gear I use now is a Nikon D200 in a sea & sea housing with 12-24, 60mm,100mm, and 10.5 mm lenses.
I long to be able one day to see any sort of whale underwater. | My Website
 | United Kingdom | |
| |
| James Ong | I'm using a Canon G10 with Inon D-2000 strobe. Diving since i'm 16, underwater photographer since 2006. | |  Malaysia | |
| |
| Andrew Ortega | olympus w/ undrewaterhousing w/wide lens,9yrs,saipan.. | My Website
 |  Philippines | |
| |
| Rick Ouellette | My Name is Rick from British Columbia,Canada. My Camera is a Nikon P5100 in a Fantasea housing with dual sea & sea YS90 DX strobes and a Nano Focus light. My Favourite photo dive site would be 7 Tree Island in Port Hardy B.C. The macro Photography opportunities in this area is out of this world. I am not much of a tropical diver when I see the amazing underwater life that we have right here in our cold water.I have been taking pictures for 2 years now and I love it. I guess I feel like an underwater Ambassador,showing to all who can not visit the beauty of our underwater marine life. | |  Canada | |
| |
| Chad Ordelheide | I take pictures :-) Canon G12, Internal Strobe, Homemade +20 Macro Lens & Diffuser. | My Website
 |  Guam | |
| |