Engineers have created a tiny camera, not bigger than a grain of salt, that can see as an eagle. The camera uses four lenses instead of one, each set at different focal lengths and mounted on an image-reading microchip that compiles data from all four lenses into a single image.

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Engineers have created a tiny camera, not bigger than a grain of salt, that can see as an eagle. The camera uses four lenses instead of one, each set at different focal lengths and mounted on an image-reading microchip that compiles data from all four lenses into a single image.