• Each tiny facet (ommatidium) has a lens leading into a crystalline cone with light sensitive cells arranged like the segments of an orange. Individual eyes are insulated from others by a lining of pigment. The final image is a mosaic of light and dark dots, like the halftone illustrations in a newspaper. More ommatidia give a finer pattern of dots and a better resolution. Even so, the resolution of insect eyes is nowhere near that of ours: images we can separate at 60 feet would have to be one foot away to be distinguished by a honey bee.
• The big advantage to compound eyes is that they pick up movements very well because ommatidia can quickly turn on and off to give a flicker effect. Ever tried to swat a fly? Insects can see ultraviolet too.
These images were taken by photographer . Checkout more insect macrophotography at: http://thomasshahan.com/photos
More on compound eyes: http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/C/CompoundEye.html
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