View Single Post
  #4  
Old 18-09-2008, 03:13 PM
bojan's Avatar
bojan
amateur

bojan is offline
 
Join Date: Jul 2006
Location: Mt Waverley, VIC
Posts: 7,111
Most likely you are seeing interference rings (Newton's rings)... glued glass elements are not glued any more.
Did you dropped it on the hard surface or hit it somehow?
Reply With Quote