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凡是学过物理学的人,都知道牛顿运动力学中的三大定律。其中惯性定律,作用力与反作用力定律经常会出现在照相机中的一些机械运动中,比如单反相机反光镜的起落就具有一定的惯性—由弹性势能转变为动能由此而引起“机震”;照相机快门的运动同样具有一定的动能……这些力学关
Anyone who has studied physics knows the three laws of Newtonian mechanics. One law of inertia, force and reaction law often appear in some mechanical movement in the camera, such as the SLR camera mirror has a certain inertia of the ups and downs - from the elastic potential energy into kinetic energy resulting in “machine shock”; Camera shutter movement also has some kinetic energy ... these mechanical off