这是一种Pan 的技术 $ \' C) A J& c7 Q. Q5 a) k; X8 E4 p# F! J7 O. Y. l, Y* c# P
The basic idea behind panning as a technique is that you pan your camera along in time with the moving subject and end up getting a relatively sharp subject but a blurred background.+ {" F$ D: h5 E& c& z. _