On Canon units, the FE lock is the asterisk button (*) directly below the display screen on top of the camera.
在佳能装置上,FE 锁是在相机顶部显示屏正下方带星号的按钮(*)。
You'll need to lock the focus if you have an auto-focus camera because most of them focus on whatever is in the center of the viewfinder. Try it yourself.
如果您使用的是自动对焦相机,您需要先锁定焦点,这是因为大多数相机将焦点对准取景器中心的物体。
In just a few years, every door lock, card reader, video camera, vehicle, power meter, and light switch will have an IP address — at least in the business world.
数年之内,至少在商业领域,每一个门锁,每一个读卡器,每一个摄像头,电表,甚至是电灯开关都会被赋予一个IP地址。
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