title: Zbar scanner and autofocus
body: <p>I have used zbar scanner for android and it captures the barcodes quite easily. 
  But the problem is that on phones which have autofocus, it captures the barcodes too quickly to detect it correctly. 
  If only it could wait for a few milliseconds more, it could then be able to capture more clearer image and thereby not show "not found" page. </p>
  
  <p>How can I solve this problem? 
  Is there a provision to delay the focus on the barcode? 
  Maybe a delay in capturing the image?</p>