Conversely, you might use a slow shutter speed to compensate for low light conditions-the longer the hole is open, the more light gets in, right?

反过来说，你可以用慢速快门来补偿暗光条件。

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By bringing the shutter speed low enough that available light registers on the image, you can retain most of the mood of a setting by not over-powering it with flash.

通过将快门速度降的足够低，并且闪灯不把背景打的过亮，你就能保留背景的大部分的细节。

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