合成光，從不同角度或以不同光源對被攝物體進行照明的光，也就是立體照明的光.運用合成光進行照明可以使物體顯得有立體感、反映物體的真實特徵或造成特殊效果。
運用合成光一定要有主次，要諧調一致，要有根據，表現出光源所在的真實合理性.還可以調和一些強烈的影調，按照拍攝任務的需要強調出對象身上的某一部分. From a different angle or in a different light source for lighting objects being proactive light, which is three-dimensional illumination of light. The use of synthetic light for lighting can make objects appear three-dimensional feeling there, reflecting the true characteristics of an object or create special effects. The use of synthetic light certain to have primary and secondary, to harmonization, there must be in accordance, showing where the real light source is reasonable. is also possible to reconcile some of the strong video transfer, according to mandate shooting out of the object need to emphasize a certain part of the body.
