Nikkor EL Nikkor Enlarger Lens Fungus Cleaning - Easy Work
I got an EL Nikkor 50mm/2.8 with fungus - more exactly it was the second copy I bought on Ebay. The first one had not described fungus, so I send it back. The sencond copy I bought with knowing it has fungus or something like that (spider net structures, much dust or such). It seems for me that used enlager lenses are prone to have fungus - in the darkroom it is most times dark, and probably a bit to much air humidity. Good conditions for fungus growth.
I got the lens and it had a lot of fungus!
As far as I remember it was simple straightforward to open the front (with rubber from an old biycle tire).
Lens-Fungus-Cleaning with desinfection solution (Ethanol, 2-Propanol) form the chemist shop, and after that isopropanol alcohol.
Very uncommon is the white plastic inside.The fungus was located in the front assembly.
But I cleaned the back assembly too.
In this lens the fungus hyphae are good visible: