Professional technicians use filtered dry nitrogen gas with a pressure- regulated nozzle for cleaning purposes. Propellant based canned air is a bad idea for any delicate optical surfaces...
G On Jul 24, 2008, at 6:32 AM, David J Brooks wrote: > I forget what Rob used, or had in the tank. It may have been oxygen > for welding. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
