所谓“傻瓜”照相机,意指傻瓜也会使用的全自动相机。最初的普通照相机拍照时,当物距变化时,就要重新调焦,使用很不方便。而“傻瓜”照相机拍照时,无论物距如何变化,只要把景物全部纳入镜头的方框内,就可拍得清晰的照片。那么,“傻瓜”相机的奥妙在哪里呢? 这完全可以用中学里学过的物理学知识得到解释。由透镜成像公式1/u+1/v=1/f(u表示物距,v表示像距,f The so-called “fool” camera, means a fool will also use a fully automatic camera. The first ordinary camera to take pictures, when the object distance changes, it is necessary to re-focus, very inconvenient to use. The “fool” camera when taking pictures, no matter how the object distance changes, as long as all the scenes into the lens box, you can take a clear picture. So where is the mystery of the “fool” camera? It can be explained by the physics learned in high school. From the lens imaging formula 1 / u + 1 / v = 1 / f (u said object distance, v said image distance, f