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Plenoptic Sensors For Computational Photography
Written by David Conrad   
Light field photography based on the use of a plenoptic lens was brought to public attention by Lytro with the first camera that allowed users to focus after they took the shot. The big problem is that Lytro has been slow to improve and slow to capitalized on the fact that light field photography is essentially a matter of software. All this might be about to change.
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