For all its virtues, digital photography has yet to correct one age-old weakness: If you blow the focus, you’ve most likely lost the shot. An emerging lens system, known as plenoptics, will change that. The product of more than a decade of research from Adobe and institutions including Stanford and Indiana universities, plenoptic cameras capture multiple focal settings in one snap, so users can refocus after the fact. The German-made Raytrix R11 is the first mass-produced plenoptic camera available in the U.S.
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