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How do you deal with fungus in a lens

 
Use a dental multi-enzyme cleaner (a blue liquid) to remove mold from your lens. If necessary, disassemble your lens and completely immerse the areas needing cleaning in the liquid. Do not dilute the liquid; use it undiluted. If the mold has already corroded your lens element, then there is no way to remove it.
 

Thanks very much, will look into this as I have quite a few lenses to work on but glad I noticed the fungus in the early stages and looks like it's in the front elements.