摄影的一些基础知识
光圈:http://www.igao7.com/news/201406/lens.html
http://www.mifengtd.cn/articles/what-is-aperture-photography.html
焦距:http://blog.sina.com.cn/s/blog_4c83579c0101cf4s.html(非常不错的专业拍摄原理文章)
镜头:http://blog.sina.com.cn/s/blog_7c4ab8a90100r9s5.html
曝光:http://www.canon.com.cn/specialsite/canon_portrait/12.html
白平衡:http://academy.fengniao.com/274/2743507.html
背景虚化:http://www.360doc.com/content/10/0625/02/129310_35079970.shtml
对焦:http://www.douban.com/note/60178469/
景深:http://www.360doc.com/content/10/0625/02/129310_35079970.shtml