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This photograph of a Blue Groper was taken in a depth of about 5 to 6 metres by the Little Trawler wreck off Cabbage Tree Island, NSW Australia on 22nd March 2015.

I used my Nikon D7000 digital SLR with a 12-24mm Nikon lens at a focal length of 12mm on manual setting and two Inon Z-240 strobes on low manual settings. ISO 500, 1/60th sec, aperture F5.6, Exposure Compensation 0.