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在现场勘查实践中,经常遇到面积小、立体感不强的残缺立体足迹.对这类足迹的拍照,如采用标准镜头加接圈的方法,则因拍照距离太短,影响拍照效果;如不加接圈直接拍照,则因成像太小,残缺立体足迹的细微特征无法显示,因而成为刑事照相中的一个难题.通过实践发现,采用中长焦镜头加接圈,再辅以适当的配光进行拍照,则较好地解决了对残缺立体足迹进行拍照这一难题.
In the field survey practice, often encounter small size, lack of three-dimensional sense of incomplete three-dimensional footprint.This kind of footprint photos, such as the use of standard lens plus ring method, because the camera is too short, affect the camera effect; Without taking the ring directly take pictures, because of the imaging is too small, incomplete three-dimensional footprint of the subtle features can not be displayed, and thus become a criminal photography in a problem found through the practice, the use of telephoto lens plus ring, supplemented by appropriate with Light for taking pictures, it is better to solve the problem of taking pictures of incomplete stereo footprint.