'Penguin-cam' gets up close and personal

9 February 2013 Last updated at 05:39 ET Help

Wildlife producer John Downer demonstrates how he and his team went about making a documentary about penguins.

In order to get close to them he deployed 50 special cameras disguised as rocks, eggs and penguins.

Penguins - Spy in the Huddle can be seen on Monday on BBC One at 2100GMT in the UK.

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