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Can filming techniques be so real they look fake? That's the accusation some have levelled at the ÃÛÑ¿´«Ã½ series Shark.

Shot in super high definition a number of viewers have said it's CGI, but the team spent four years travelling and filming around the world.

Cameraman Morne Hardenberg says the footage in the series is definitely not fake.

"If we could fake that it would make our lives much easier... the reason why we go through this whole process... is just to capture the animals and bring it to the audience is a unique way," he said.