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8月5日,就在世界的目光已经几乎全部集中在马上就要开幕的北京奥运会上时,数码相机领域突然传来爆炸性的消息:奥林巴斯与松下联合宣布推出基于原有4/3系统(Four Thirds System)的新相机系统:微型4/3系统(Micro Four Thirds)。新的相机系统取消了原有单反相机结构内的反光板,以及五棱镜、目镜等组件,将相机的法兰距离(镜头卡口到成像元件的距离)缩小了一半(从40mm缩短至20mm),同时卡口直径也由50mm缩小至44mm。据称这种新的卡口和机身结构可以显著减小镜头的体积和重量(相同的焦距和光圈规格下),同时出于显而易见的原因,相机机身的结构也可以变得更加紧凑,从而大大缩小体积和重量。
August 5, in the eyes of the world have almost all focused on the upcoming opening of the Beijing Olympic Games, suddenly came the explosive field of digital cameras: Olympus and Panasonic jointly announced the launch based on the original 4/3 Four Thirds System’s new camera system: Micro Four Thirds. The new camera system eliminated the retroreflective sheeting and the pentaprism and eyepiece components of the original SLR camera structure and halved the camera’s flange distance (lens mount-to-imaging distance) by half (from 40mm to 20mm) , While the mount diameter reduced from 50mm to 44mm. This new bayonet and fuselage structure is said to significantly reduce the size and weight of the lens (under the same focal length and aperture specifications), and for obvious reasons the camera body structure can be made more compact, Thus greatly reducing the size and weight.