纵观EF镜头的发展史,我们似乎可以把其看作就是单反相机镜头的发展历史,超声波马达、萤石镜片、UD镜片等高科技技术把EF镜头武装到了极致,演绎了引领单反相机镜头发展潮流的EF传奇,本刊特约著名数码相机专家黄其昆将这一切向你娓娓道来。 Throughout the history of the development of EF lens, we can see it as the history of the development of SLR camera lens. The high-tech such as ultrasonic motor, fluorite lens and UD lens arm the EF lens to the extreme, which has led the development of SLR camera lens The trend of the EF legends, Articles special famous digital camera expert Huang Qikun all this to you his right.