I just purchased a Canon 80-200mm L f2.8 (Magic Drainpipe) and need some input as to whether it has fungus or not. The original owner claims they only used it a few times and the lens does look Brand spanking new for that matter; however, upon close inspection there are many tiny spots within the lens.
One element (as pictured) has the spots all over it. They are all uniform in size and a significant amount. Then there is what appears to be a middle element that has the same type spots but they are only located in the center of the lens element, the outside edges are all clean unlike the one pictured. I cannot get pics of it but that is what raised a red flag for me because dust doesn't just migrate to one area and dust also varies greatly in size. Lastly, you can typically count the amount of dust specs within a lens and this is not the case with this lens.
I've never had a lens with fungus before but all the above would seem to be an indication of such. I would appreciate your input in confirming or denying this because it's a great lens. None of the specs degrade image quality that I can tell but I've only take a few images with it and do worry it could get worse...