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.

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。

Remember that you control the ambient exposure behind your model by changing the shutter speed.

记住，通过改变快门速度来改变环境曝光。

After a period determined by the set shutter speed, the rear curtain now drops to close the camera to light and end the exposure.

度过由快门速度设置的曝光时间后，后幕帘落下闭合，曝光停止。

If available. If you do these things, you're going to be able to get a proper exposure even with the fast shutter speed you need to freeze the action.

如果你按照以上这么做了，你可以在高速快门定格画面的同时得到一张准确曝光的照片。

But you also know that at that speed you risk not getting enough light for a proper exposure.

但你同样知道，你要冒着得不到足够光线来进行曝光的风险使用这个速度。

Lower speed films produce images of good resolution and dynamic range but requires more photons for exposure and increases the radiation dosage of the subject.

较低的速度电影产生良好的分辨率和动态范围的图像，但需要接触更多的光子，并增加了受辐射剂量。

ASA Exposure: Index or speed rating that denotes the film sensitivity, defined by the American National Standards Institution.

ASA曝光指数∶由美国国家标准学会规定，标明胶片对光的敏感程度的指数或感光速度。

Nevertheless, to avoid incorrect exposure, select a larger or smaller aperture, select a faster or slower shutter speed, or use a flash unit as necessary.

为了避免不正常的曝光，可选择较大或较少的光圈，较快或较慢的快门速度，必要时可用闪光装置。

Since the shutter speed determines the length of time that light hits the sensor, it will affect the overall exposure of the image by halving or doubling the exposure.

由于快门速度决定了光线照射传感器的时间长短，所以它也是用来控制曝光亮的手段。

Increasing your shutter speed or closing your aperture will help limit your exposure.

应该加快快门速度，或调小光圈以减少曝光。

If you use a tripod, no matter how to set the shutter speed to the "slow", even long exposure, can prevent the image because "jitter" and the image produced by fuzzy.

如果使用了三脚架，无论快门速度设定到如何的“慢”，甚至长时间的曝光，即可防止图像由于“抖动”而产生的图像模糊。

This system has intrinsic parallel characteristic owing to its stepper exposure mode, therefore it can improve the manufacturing speed and precision of gray-scale masks with low cost.

该方法采用逐个图形曝光的方式使其具有内在的并行特性，可大大提高灰度掩模的制作速度和精度，并降低生产成本。

There is now a choice of either manual or automatic film speed setting (DX coding), eliminating the risk of annoying exposure errors due to wrong ISO Settings.

现在有一种手动或自动胶片速度设置(的DX编码)消除恼人的错误，因为错误的曝光ISO设置风险的选择。

High speed processing of not generating stimulation, room temperature exposure does not corrode the skin.

高速加工中不产生刺激，常温下接触不腐蚀皮肤。

For a given probability, the daily peak wind speed increases as the exposure period increases.

对一个给定概率，日常峰值风伴随着测量周期的增加而增加。

If you zoom in to take close-up photo: the lights is not strong enough, the camera tries to make up the exposure, it might automatically set the shutter speed down to 1 seconds, 2 seconds.

如果你放大到近距离照片：灯是不够强大，相机试图弥补风险，它可能会自动设置快门速度降低到1秒，2秒。