April 25, 2011
Notice that the child blinked when the picture was snapped. But… his reflection on the right of the picture show his eyes open! How did that happen?
A modern digital camera takes pictures by scanning from one side of the frame to the other (or top to bottom, depending on how you hold the camera). For most applications, that’s fine. However, when objects move faster than the scanner, you get what is called the rolling shutter effect.
Photo posted at 12:20 PM
