Quote Originally Posted by firecracker
"... My concern is about the rapid growth of fungus in the humid environment..."

"... person/technician at this well-known repair shop specialized in repairing old used Leica products... didn't mention about any signs of the fungus, which I asked..."
You said you asked about fungus and the tech "didn't mention" any. Could you be a little more specific? Do you mean s/he evaded or ignored your question, or s/he said there were no signs of fungus? Also, if the tech couldn't reassure you, maybe a second opinion would?

Seems to me, if there are no signs of fungus, and your concern is fungus, you might want to keep a supply of a desiccant in your kit.