事实上你看不出所有的向量,因为拍摄此图时没聚焦好,所以我们还是看前一张吧。
You don't really see all the vectors, actually because the autofocus is having trouble with it It cannot really do it, so I guess I will go back to the previous one.
你可以选择带上小闪光灯，打在物体上，聚焦，在曝光前移除。
Alternatively, bring a small flashlight since this can be set on the subject, focused on, and then removed before the exposure begins.
微型显微镜太厉害了：如果我在身前伸展胳膊，显微镜会聚焦到我一片手指甲上的一小块。
The little telescopes are amazing: if I stretch my arm out in front of me, the telescopes focus on one-quarter of one of my fingernails.
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