Since aperture is the main event in aperture priority mode, you may not need to press the aperture button; simply rotate the command dial and look for the changing Numbers in the LCD status screen.
就光圈优先模式来说，光圈是最主要的参数，所以你并不需要再按光圈按钮，直接转动指令盘并且在LCD上查看数值变化即可。
Aperture Priority Mode is a great way to control depth of field as it will ensure your images are well exposed.
这个半自动的模式是控制景深并保证良好曝光的绝好方式。
Program AE, Aperture Priority, Shutter Priority and Manual exposure modes.
程序ae，光圈优先，快门优先和手动曝光模式。
Programmed auto exposure, Aperture Priority Auto and Shutter Priority Auto, Manual exposure. ; AE lock.
自动曝光，程序自动曝光P（可进行程序微调），光圈优先（A），快门优先（S），手动曝光（M）
Fixes a phenomenon in which the aperture exhibits abnormal movement when shooting movies in manual exposure mode and aperture Priority AE (Av mode) using some Canon lenses (such as macro lenses).
修正了相机于手动或光圈先决模式拍片时，镜头光圈出现异常动作的问题(如微距镜头)。
Fixes a phenomenon in which the aperture exhibits abnormal movement when shooting movies in manual exposure mode and aperture Priority AE (Av mode) using some Canon lenses (such as macro lenses).
修正了相机于手动或光圈先决模式拍片时，镜头光圈出现异常动作的问题(如微距镜头)。
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