depth of field

基本解释

If you can get that level of depth of field for that cheap in order to single out your subjects in your photos, why not go for it?
如果你发现能花这么少的钱来取得这么浅的景深——足以把你的对象在相片中突出，为什么不马上配备一个呢。
The simplest way to do this is to choose a small Aperture setting (a large number) as the smaller your aperture the greater the depth of field in your shots.
最简单的办法是选用最小的光圈设定（镜头上显示的最大的数字），光圈越小，你所获得照片的景深就会越大。
Photographers often push this effect further by using a very shallow depth of field while shooting, which blurs out everything unimportant and highlights the subject extremely well.
给这些小家伙拍照时，摄影师通常会选择很浅的景深，这样周围不重要的事物会很模糊，但主体会被突出得恰到好处。

Arty photo effects that use selective focus and short depth of field are actually closer to the truth of the eye.
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They offer the chance to use a much shallower depth of field.
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the range of distance in front of and behind an object focused by an optical instrument, such as a camera or microscope, within which other objects will also appear clear and sharply defined in the resulting image &rarrcompare depth of focus

景深
The second one is the fast enhancement algorithm with depth of field compensation in objects.
第二,考虑景深距离补偿的快速图像增强算法。
电子、通信与自动控制技术
景深