So you have these two parameters, shutter speed and aperture size, both of which do essentially the same thing: control how much light gets in.

现在你已经了解了这两个参数——快门速度和光圈大小，他们从本质上来说有同一个功能：控制进入相机的光线总量。

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Night photography is subject to the same set of constraints as daylight photography - namely aperture, shutter speed and light sensitivity - although these are all often pushed to their extremes.

夜间摄影与白天摄影受到同样条件的约束——即光圈，快门速度，感光度——不过它对于这些参数的控制都要达到极致。

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You get the same amount of light with a large aperture and a fast shutter speed as you do with a small aperture and a slow shutter speed.

你使用大光圈以及慢速快门所得到的光和你使用小光圈以及高速快门得到的光是一样多的。

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Additional tweaks include a manual volume adjustment (as opposed to the automatic gain the cameras usually employ), a brightness or RGB histogram display (this function, like some of these other features, has been available for a while as a hack), shutter and aperture priority modes have been added for movie shooting, and the audio sampling ramp has been bumped from 44.1KHz to 48KHz.

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Along with the live view look, you'll also see the shutter speed, aperture, available image space and battery level.

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One stop of light is usually defined as halving or doubling the amount of light entering the camera, depending on the shutter speed, aperture, or ISO changes made.

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