This is a new camera design by a company called Lytro. The design of this camera is a two-tone elongated box 4.4 inches long and 1.6 inches square. At one end is the lens and at the other is an LCD touch-screen display; along the sides are power and shutter buttons, a USB port, and a touch-sensitive strip to move the F2 lens through its 8X zoom range.The three Lytro camera models sport a very different design on the outside, but their light-field technology inside is even more of a departure from conventional cameras.
Conventional digital cameras use lenses to focus a subject so it’s sharp on the image sensor. That means that for an in-focus part of the image, light from only one direction reaches the sensor. For light-field photography, though, light from multiple directions hits each patch of the sensor; the camera records this directional information, and after-the-shot computing converts it into something a human eye can understand.
The result is that a Lytro camera image is a 3D map of whatever was photographed, and that means people can literally decide what to focus on after they’ve taken the photo.
So with this technology you do not need to focus your camera on an image while you are taking your photographs. You can just simply plug it into your computer and it comes with the technology to decide what you want to focus on.
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