Paul Not sure if any of the used equipment dealers would have them, but you can also try : http://www.shopzilla.com/flash+tubes/search They have all kinds of stuff and if not may be able to find a source. Regards, Ron Ronald J. Kaiser Manager, Sales National Medical Systems Division Canon U.S.A., Inc. 3300 North First Street, San Jose, CA 95134 www.usa.canon.com rkaiser@xxxxxxxxxxxxxx T 408.468.2511 C 949.677.9477 F 408.468.2518 "Montague, Paul R" <paul-montague@xxxxxxxxx> Sent by: optimal-bounce@xxxxxxxxxxxxx 08/03/2010 12:17 PM Please respond to optimal@xxxxxxxxxxxxx To <optimal@xxxxxxxxxxxxx> cc Subject [optimal] Fill flash Optimal, Has anyone found a source for fill light flash tubes for the old series of Zeiss Photo Slitlamps? Paul Montague