 FAKE: When the VGer probe first comes onto the bridge, the portion  of the set around the probe appears to "shrink". For example, the  view screen is not as wide in one shot, and the dome in the bridge  ceiling disappears and reappears as the probe passes in front of the  helm and navigation console. This was due to a distortion effect,  done to "hide" the electrician holding the light source used in this  sequence.