I would like to find out more about lens fungus.
I have been finding a lot of information on the internet but I am not so sure it is really reliable. So I am here in the best forum to ask the experts to share some tips and shine some light through...
What I am interested is:
-1- speed of growth
-2- dead fungus, how can you tell from a living one
-3- can be cleaned with UV/sun rays or does it need special facilities (Leica uses a tropical decease specialised clinic in Hamburg...)
-4- when cleaned, can it come back?
Please reply if you have first person experience.