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本文从理论上论述了多功能痕迹物证摄影仪的基本结构和使用方法。利用现有的近距摄影装置、球形摄影仪、彩色偏光镜和偏振摄影灯等设备，对常见痕迹物证进行模拟拍摄实验证明是可行的。解决了拍摄光滑金属物体表面遣留痕迹时的反光干扰问题和加强反差摄影时光照角度不能连续可调的问题。
This paper discusses the basic structure and usage of multi-functional trace evidence camera in theory. It is feasible to simulate common trace evidence by using the existing close-range photography device, spherical camera, color polarizer and polarized photography light. Which solves the problem of the reflection interference when shooting the trace of the surface of the smooth metal object and the problem that the illumination angle can not be continuously adjusted when the contrast photography is intensified.