Specialist underwater camera systems are pricey, so iPhone owners should get this nifty housing system instead. It keeps all Apple phones from iPhone 4 to 5s safe to a depth of 60 metres, and its controls work with an app that turns your phone into a surprisingly efective underwater cam and dive log. Te buttons are big enough to be used with diving gloves and give you access to all the functions. It even has a threaded front for attaching wide-angle or macro lenses. £145 / www.nauticamuk.com
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