Theoretically, yes. However, the fungus would need a long continous period of humid conditions to grow from the filter into the lens. I would consider the chance of transferring spores as equal to the chance of catching something from the air.
With the optics kept dry I can't imagine there's any risk at all. Jostein ----- Original Message ----- From: "Boris Liberman" <[EMAIL PROTECTED]> To: "PDML" <[EMAIL PROTECTED]> Sent: Saturday, June 28, 2003 3:24 PM Subject: Question regarding fungus > Hi! > > Given a lens with fungus on one of its internal elements and clean > lovely VMC Vivitar skylight filter, is it dangerous (fungus wise) to > take this filter and attach it to another lens? Can it transfer > fungus? > > Thanks in advance. > > --- > Boris Liberman > ([EMAIL PROTECTED]) > >

