Light-field photography has the potential to revolutionize photography. Ren Ng, the founder of Lytro, explains how a camera can capture images that are never out of focus

Lytro has big plans. This week the Mountain View, CA-based startup said it would soon bring to market a new kind of camera that's based on light-field photography. The result: photographs that you can focus after you take them. Simply click your mouse on the spot on the picture you want in focus, and it changes before your eyes 


Article including demo   also see this video from the BBC


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