Canon's new Speedlite 470EX-AI flash is designed to do the hard work for you, automatically repositioning itself for the best results. In this video we gave the 470EX AI to two portrait photographers - John Keatley and Chelsea Miller, to see what they thought.

John is a professional studio photographer, whose usual setups involve multiple external strobe lights. Chelsea, meanwhile, is a self-described 'natural light snob'. Watch our video to see how they got on with Canon's smartest accessory yet.

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