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.
鸟人们常常计划参与观鸟节旅行以便看到更多的鸟，他们也可能会上一些摄影或者基础鸟类学的课程来帮助扩展他们的知识并让观鸟这个爱好更加有趣。
Birders often plan travel to festivals to see more birds and they may take photography or basic ornithology classes to expand their knowledge and enjoyment of the hobby.
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.
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