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。
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.
尝试用不同快门速度拍摄，由低到高(调整光圈以获得正确曝光)，注意观察它为你的拍摄带来了何种影响。
Photograph it at different shutter speeds, from slow to fast (adjust your aperture to maintain correct exposure), and see what affect it has on the appearance of the subject in the photo.
校准快门速度和光圈。
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。
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.
面向初级和中级水平的摄影师，《理解曝光》用简单易懂的文字介绍了光圈、进光量和快门速度这“摄影三角”的基本知识。
Easy to read and straight-forward, Understanding Exposure offers the basics of aperture, lighting and shutter speed, photography’s basic triumvirate, to beginning and intermediate photographers.
那么现在，进入了第二部分的我们将要开始学习光圈大小以及快门速度，让我们这就开始吧。
Now in part two we're going straight to manual mode to learn about aperture sizes and shutter speeds. So let's do this thing.
如果你觉得自己足够大胆，那就试试使用手动模式让自己同时控制快门和光圈。
If you're really feeling bold, try going to manual mode where you control both the shutter and the aperture yourself.
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。
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.
如果普通同步速度配合你选用的光圈和ISO会导致环境光过曝，那你就需要更快的快门速度。
You'll usually need to work with higher shutter speeds if normal sync at your chosen aperture and ISO will result in overexposure of the ambient lighted portions of the image.
同时控制快门和光圈并不简单，但却绝对值得。
Taking control of the shutter and aperture isn't easy, but the rewards can be great.
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.
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."
在这种情况下拍摄者会使用很短的快门时间并调小光圈，这样就不可能拍摄到黑色背景上那些很暗的物体，如星星。
Under those conditions photographers shoot with a fast exposure time and small aperture. That makes it impossible to capture faint objects in a dark background, such as stars.
只买机身，然后另外购买一个高速镜头.（译者：一般指允许进光更多而提高快门速度的，大光圈镜头。
实际上，当你按下快门时，一套复杂的程序开启，包括镜头内光圈的设置、一块单镜头反射镜的升起和其他更多的步骤。
When you press the shutter release on the camera, a complex sequence of events occurs, including setting the aperture in the lens, flipping up the mirror of an SLR and a lot more.
你还需要根据风暴的位置远近设置好适度的快门速度和光圈值。
You also need to set the proper film speed and aperture. This will all depend on location of the storm.
现在你可以在F4光圈下用任何快门速度甚至相机最快的快门速度拍摄，取得你想要的拍摄效果：背景模糊的人物像。
Now, you can go ahead and shoot at F4 with shutter speeds up to the Max the camera has available. And you still achieve that precious look that we all want; a portrait with a blurred background.
就像镜头有一个光圈范围，你的相机也有一个快门速度的范围。
Just like a lens has a range of apertures, your camera has a range of shutter speeds.
程序ae，光圈优先，快门优先和手动曝光模式。
Program AE, Aperture Priority, Shutter Priority and Manual exposure modes.
在自动模式和程序模式之下，相机一般会选择一个不大不小的光圈和快门来进行适当的曝光，但这样既不会有任何极端参数，也就更失去了创造的机会。
In auto mode and program mode, the camera usually chooses middle-of-the-road aperture and shutter Settings, getting a good exposure but avoiding any extremes-and any creativity as well.
这门课同样适合那些懂得IS O感光度、光圈、快门速度、白平衡等摄影知识并能用自己的数码单反或桥梁相机设置这些参数的同学。
It is ideal for those who have an understanding of ISO, aperture, shutter speed, white balance and how to change these on your digital SLR or bridge camera.
这门课同样适合那些懂得IS O感光度、光圈、快门速度、白平衡等摄影知识并能用自己的数码单反或桥梁相机设置这些参数的同学。
It is ideal for those who have an understanding of ISO, aperture, shutter speed, white balance and how to change these on your digital SLR or bridge camera.
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