Wild Wonders of Europe / Lundgren / Photographer, Magnus Lundgren, Saltstraumen, Bod, Norway, October 2008, photographed by Klas Malmberg, model released

Stephane Granzotto / Scuba divers tagging Whale shark (Rhincodon typus) whilst others film on underwater cameras. Tadjourah Gulf, Republic of Djibouti. December 2017.

David Fleetham / Divers with digital still and video cameras exploring a large wreck, Palau, Micronesia. Model released.

Gabriel Rojo / Underwater cameraman filming South American sea lion (Otaria flavescens) Peninsula Valdes, Patagonia Argentina

Andy Jackson / 2020VISION / A group of four Arctic charr (Salvelinus alpinus) swimming mid river in the distance towards photographer Linda Pitkin kneeling in the river photographing on assignment for 2020vision, River Lisa, Enn...

Sergey Gorshkov / Photographer Sergey Gorshkov getting ready to photograph Kamchatka brown bear (Ursus arctos beringianus) underwater, Kamchatka, Far East Russia, August 2006.

Michele Westmorland / Female scuba diver and filmmaker with large underwater camera system. Galapagos Islands, August 2010. Model released.

Michele Westmorland / Female scuba diver and filmmaker with large underwater camera system. Galapagos Islands, August 2010. Model released.

Franco Banfi / Woman photographing Trumpet gentian (Gentiana kochiana / acualis) Lake Sassolo, Sambuco valley, Ticino, Switzerland

Michael Pitts,Michael Pitts / Presenter Mike De Gruy and Cameraman Bob Cranston on BBC filming assignment for 'Live From The Abyss' Cocos Island 2003

Alex Mustard / 2020VISION / 2020Vision Team Photographer, Alex Mustard, shooting with 'bug-eye' (fish-eye relay) lens in the marine Loch Duich, Ross-shire, Scotland, UK, April 2011. British Isles. Model released

Juergen Freund / Underwater photographer shoots a pygmy seahorse. Other divers at this manta cleaning station waiting for mantas to arrive. North Raja Ampat, West Papua, Indonesia, February 2010