对景深理论的证明及探讨

Discussion and my proof of the depth of the field theory

对现有摄影文献直接给出的景深及超焦距的特点和影响景深的因素作出了详细的数学证明 ,进一步探讨了这些结论在摄影技术中的实际意义 。

This essay gives a detailed mathematical proof of the traits of the depth of the field and ultrafocuses,the factors affecting the depth of the field that is directly showed in other photographic articles. It also discussed the actual significance of these theories in photography and enable the theory of depth of field extensive and complete.