将指令盘拨到“ S ”来告诉你的相机：我设定快门速度，而你来调整光圈。

Putting the dial on "s" tells your camera "I am deciding the shutter speed, you set the aperture for me."

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注意相机可能会自动将快门速度设到1/125，光圈设到F11。

Notice that perhaps your camera will select, on its own, a shutter speed of 1/125 with an aperture of F11.

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使用F2.8-F4左右的光圈，并且选择性的对焦，将您想要强调的部分放在焦点上。

Using an aperture of 2.8 or 4 will allow you to use selective focus, putting more emphasis where you choose.

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