There's a, um... fuzz, in my lens

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    I pulled out my telephoto lens that attaches to my old Minolta SLR and glanced through it, only to find this strange fuzzy spot. It almost looks like ancient mold that grew on the inside between the lenses. I wonder if I can even still use it or if a dark, smudgey spot will show up on all my prints.

    1. AndrewNZ 108 months ago | reply

      Yes - it is likely to be mold. I was looking at second hand lenses online the other day and was surprised by the number of people vouching that their lens was mold-free. Have no idea whether it is possible to get it cleaned out, but you're likely to have to take it to a specialist cleaner.

    2. Jacob Haas 108 months ago | reply

      Kind of a bummer, really, because it was my MD Minolta Celtic 135mm lens. I used to get some pretty sharp shots with this one, but then that mold might have been there the whole time, so it might still be good. That's really only about 1mm across, that spot.

    3. NicestAlan 108 months ago | reply

      Okay, this got your medical geek friend interested, so I did a little research. Yes, the problem of mold in optical instruments goes back at least as far as WWII. I imagine that bomb sights and binoculars in the Pacific Theater must have been susceptible, hence this old article in the Journal of Bacteriology. All is not lost, however. The mold can be removed by having the lens professionally cleaned.

    4. Jacob Haas 108 months ago | reply

      That's cool... I asked my mom if it was always there in the lens and she said it had been there as long as she could recall and it had never affected the photos. So I guess it's cool, I just had never seen it before.

      Interesting link, though.

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