As I got no interest so far, it seemed to me that I buried my question under the thread. Let me try again.
The Kiron 70-210/4 I bought off ebay arrived today. I had a look at the front element(s) and I see a reflection like a small splash on the back of the front element or on the second element or sth like that. Is that Mr Mushroom? Is that a goner? Any references on fungal infections and particularly detection? Otherwise, what could be this problem? Not very hopeful, Kostas
