Fungus on Lens - Help me

Started Oct 7, 2012 | Discussions thread
ZoneV Regular Member • Posts: 209
Re: Fungus on Lens - Help me

Ian wrote:

Once you have Fungus in a lens, it can not be cleaned out, it is normally in the Bolsam between the elements.

In truth its a replace elements job, but a new lens it will possibly be cheaper in the long term

It sounds as though the lenses may have been stored somewhere damp..

I have cleaned ~20 lenses with fungus. Sometimes the glass is etched permanently. And on one lens I tried to clean, the fungus was inside a lens group - in the glue. Canada balsam is not used in modern lenses. But even on my old lenses with most likely Canada Balsam I did not find fungus inside there.

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