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This photograph of Blue Lined Octopus mating was taken at a depth of 11 metres at The Pipeline Nelson Bay NSW Australia on 27th November 2020.

I used my Nikon D500 digital SLR with a Nikon 60mm lens and two Inon Z-330 strobes on low manual settings. ISO 100, 1/250th sec, aperture F6.3, Exposure Compensation 0.