With slow shutter speed, it's more likely that you or your subject is going to move while the shutter is open, causing motion blur in your photo.

如果快门速度较慢，则快门打开时，您或您的拍摄对象很可能会移动，从而导致照片出现运动模糊。

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Can you see it when I open the shutter to let in the light?

如果我打开百叶窗，让光线进来，你能看见吗？

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With a slow shutter speed it's more likely that you or your subject is going to move while the shutter is open, causing motion blur in your photo.

但是这里一样有个缺点，那就是使用慢速快门时，如果你或者你的被摄主题有任何移动的话，你的照片中就会出现动态的模糊。

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For those not aware, to take a photograph of lightning you must open the shutter and hope - or perhaps pray.

BBC: Lightning really does strike twice

The cinema systems also don't flicker -- a big complaint about the active lenses, which shutter open and closed very rapidly to try to send a different image to each eye.

CNN: Electronics makers try to resurrect the third dimension

The idea was to pop the D3200 into manual mode, force the shutter to stay open for 30 to 60 seconds while on a tripod, and use the camera to trigger the shutter as to avoid camera shake from mashing the button on the body itself.

ENGADGET: Nikon WU-1a wireless mobile adapter for D3200 review: using Android as a remote trigger / wireless display