高位侧光一般用于拍摄人像，通常称为“伦勃朗用光法”，这种用光方式强调边缘和深度。
Light emitted from above and to the side when applied to portraits creates what is often referred to as "Rembrandt lighting". This form of lighting emphasizes edges and depth.
该原则同样适用于侧光：侧光源离被摄主体近时，整个画面的光线衰减将比光源离主体远时更明显。
The same holds true for sidelighting: With a light close to the side of your subject, the falloff of light across the frame will be more pronounced than if the light is farther away.
同样，侧光、顶光和底光能够在物体上投射出深而长的影子，从而制造出立体感。
Again, lighting from the side, above, or below, by casting deeper and longer shadows, creates the sense of volume.
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