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M4/3系统是在4/3系统的基础上,通过取消反光镜、五棱镜等传统单反相机的结构,缩短法兰距并缩小卡口外径等一系列手段,获得从机身到镜头整个系统的轻型化。定焦镜头可以算是M4/3系统的精华,在广角定焦镜头方面,目前这个系统有6只各具特色的镜头,包括从六七百元一只的“平民饼干”到价格十几倍于它的大光圈手动定焦镜头。
M4 / 3 system is based on the 4/3 system, by eliminating the mirror, pentaprism and other traditional SLR camera structure, shorten the flange distance and reduce the bayonet outer diameter and a series of means to get from the camera to the whole body Lightweight system. Fixed-focus lens can be regarded as the essence of the M4 / 3 system, wide-angle fixed-focus lens, the current system has six unique lenses, including from six or seven hundred a “civilian biscuits” to the price of ten Times its large aperture manual fixed focus lens.