I have a couple of lenses with fungus in them. Apparently, I bought them that way on eBay. I checked my other (many) lenses and found no fungus. One is a Nikkor 105 f/2.5 AIS (manual focus). When I got it, I gave it a cursory glance at the lens elements because the lens was in perfect condition otherwise. By the time I finally gave the lens elements a better look, it was much too late to try to return it. The other is a Nikkor 25-50 f/4 AIS MF lens. I did give this one a good look when I bought it, but didn't see anything on the elements. However, I was getting ready to use it and looked again at the elements. They were clear as far as I could see. However, the lens shifted while I was looking through it and on the FAR edge of one of the elements, I saw the small patch of fungus. RATS! I did some searching online, and I called APS (Authorized Photo Service) and they quoted me $145 to clean out the 25-50 lens. Since I only spent $220 for the lens, I passed. Anyhow, I was wondering just how much these 2 lenses could be expected to be sold for? Thanks for reading this.