First, a definition: "A plenoptic camera, also called a light-field camera . . . is a camera that uses a microlens array (also known as a lenticular lens array) to capture 4D light field information about a scene." Click here to see the entire Wikipedia article.
Adobe has recently demonstrated a light-field camera that is truly amazing. Through software, it actually lets the user refocus the image through then entire depth of field. Light-Field cameras are able to do this by refocusing the image through many, smaller lenses much like a bug's eyes focus through many small lenses. Essentially, an unprocessed image looks totally blurred, but can be focused at any point in the depth of field. It can be focused after the fact.
Ratrix, a company out of Germany actually makes light-field cameras for sale and will also modify existing cameras to work with their light-field software. Click here to see their products.
Check out the video. It is truly amazing.
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