See:-http://forum.digitalfotonetz.de/viewtopic.php?t=83708&postdays=0&postorder=asc&start=0via This PF Post.The human translated quoted statements are quoted as below. (Yes, it has been quoted for times! ;-))"According to a statement from Pentax Product Management, Pentax K-5 had a production problem within a specific serial number range. The problem is due to residues of a volatile material that
