• Caption: xkcd comic strip author Randall Munroe signs multicolored playpen balls after his lecture at MIT.
  • Keywords: cyca
  • File Name: DSC_0775.NEF
  • Image Date: 5/14/07 8:55:44 PM EDT
  • Aperture: ƒ/2.8
  • Shutter Speed: 1/60
  • Focal Length: 17.0mm