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数码单反相机的重要特征之一就是自动化的程度非常高,而单反相机自动化的重要功臣之一就是测光系统。随着各大厂商不断对测光技术进行改良,TTL测光(Through The Lens,通过镜头测光,是单反相机普遍采用的测光方式,测量通过镜头进入相机的被摄物体反射光强度的方式)的测光模式也越来越多。
One of the important features of digital SLR cameras is the high degree of automation, and SLR camera automation is one of the important contributors to metering system. As the major manufacturers continue to improve metering technology, TTL metering (Through The Lens, through the lens metering, SLR cameras commonly used metering method to measure the camera through the lens into the camera’s reflected light intensity of the way ) Metering mode is also more and more.