小提示：在室内用现有灯光拍摄人像时，可以通过改变光源与被摄体间距离的方法使照片的光线更加动人。
Tip: When photographing people indoors by available light, move lamps closer to them or vice versa for more flattering light.
这听起来有些复杂，其实很简单，举例说明：如果你将光源至被摄主体的距离增加1倍，那么落在主体上的光线只有距离增加前的四分之一。
That sounds complicated, but isn't really. If you move a light twice as far from your subject, you end up with only one-quarter of the light on the subject.
地球和月球被摄进一张照片中，是1977年由NASA的旅行者1号所拍摄的，当时距离地球725万英里。
This picture of the Earth and Moon in a single frame, the first of its kind ever taken by a spacecraft, was recorded Sept. 18, 1977, by NASAs Voyager 1 at a distance of 7.25 million miles from Earth.
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