Hi this is a documentary vide about the process of making optical lenses. Now is a time to turn the zoom of the camera to the zone of the camera. Lenses are really several lenses which are combined together. They are able to bend the range of light and make the light focus on a special point and make use able to sea better, far distances with cameras, and telescope and tiny things with microscope. They are made out of optical glasses and cut by diamond blade, purring liquid, water, on the blade to prevent glass burning by diamond blade. Then cut round pieces carry to the next step.
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