Light - The Reliance And Problem Of Photography

Photography comes from Greek:123&456.In short,the principle of photography is"Drawn by the light".As we know,light is actually the ultimate factor in photography.But we seem to ignore that,there are some other problems caused by the light.Light is the foundation of photography,but the "problems" may not be bad things.Light not only can help us to get a vivid picture,also can construct images that not objectively exists in the world out of the brain.Which we have not realized before.