Mark on the rear element. fungus? affects the image?

Started 3 months ago | Questions thread
OP desoho Junior Member • Posts: 36
Re: Mark on the rear element. fungus? affects the image?

Thanks.

From what I see it's on the outer surface of the element. I can see the bump. Can it be a separation on the outer surface? or the separation usually happens between the elements which are cemented?

Is there anyway that I can make sure if it is fungus to not?

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