Zebra Pattern or Zebra Stripes Featured in top digital consumer camcorders and all professional ones. In the portion of the picture when the brightness and exposure exceed a certain level diagonal stripes (zebra pattern) appear (only in the viewfinder, not on the actual picture). This feature is a guide for adjusting the aperture, gain and shutter speed. Zoom Allows the user to frame a shot prior to recording it or to close-up on a subject while filming to create a special visual effect. This is achieved by changing the focal length of the lens (= Optical Zoom). Zoom speed is controlled.