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  1. #1
    Ian David's Avatar
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    Tiny droplets? on inside lens element

    Greetings
    Interested in any ideas anyone may have on the following...
    I happened to have a close look through the barrel of my Hasselblad 50 today when I noticed a large number (couple of hundred?) of what look like tiny droplets on one of the inside elements. It is not dust. It does not look like condensation, as the individual 'droplets' are distinct and quite evenly spaced all over the element with clear space in between them. Nor does it look like fungus. I have heard of oil turning up on lens elements, but am not sure what that would look like.
    This is not an old lens - about 7 years old I'd say.
    Any thoughts?
    Thanks
    Ian

  2. #2

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    i have a similar thing on some of my enlarger lenses and i have tried long term sunlight exposure (that usually works for fungus) but has no effect on this particular affliction. as yet i have not noticed any major impact on image quality but i still have no idea what it is or where it came from. curious...

  3. #3
    JPD
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    Oil condensation perhaps?
    J. Patric Dahlén

  4. #4

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    Hello Ian,
    I had this effect in the Xenar lens of a Rolleicord and the service man guessed that the previous owner had attempted to get a slow working shutter free by injection of some solvent instead of a CLA to save money. This solvent formed a condensate on the lens surface or splashed onto it.



 

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