title: Same intrinsic parameter for same camera?
body: <p>I'm doing a mobile augmented reality app. I need to calibrate my camera to get the intrinsic and extrinsic parameters using chessboard calibration.</p>
  
  <p>Can I assum that if I calibrate my nexus 4, all nexus will have the same focal length, skew factor and distortion matrix ?</p>
  
  <p>Thanks </p>