Is this separation or fungus or ..?

Discussion in 'Medium Format Cameras and Accessories' started by Matus Kalisky, Apr 23, 2010.

  1. Matus Kalisky

    Matus Kalisky Member

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    Hello,

    this is view of the rear element on the Pentax 33-55/4.5 Is this separation or fungus? The owner says it is not on the outer surface. What do you think?

    Any idea how costly it could be to have this lens element exchanged/serviced?

    thank you
     

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  2. R gould

    R gould Member

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    It looks like fungus to me, personally I would leave it alone, gettimg anything done would certainly be costly and pentax standard zooms are plentyfull and reasonably priced,Richard
     
  3. brucemuir

    brucemuir Member

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    Yep looks like fungus to me.
    I'd pass considering you probably can't get to the inner element surfaces too easily.
    In my experience this stuff cleans up fairly easily if you can unscrew the elements.
     
  4. John Koehrer

    John Koehrer Subscriber

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    There's a fungus among us.
    Unscrew the rear element & carefully wipe it clean.
     
  5. MartinCrabtree

    MartinCrabtree Member

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    Ah that far too easy to be right. :smile:
     
  6. Sirius Glass

    Sirius Glass Subscriber

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    As one toe said to another, when they had athlete's feet, "There is a fungus among-us!"

    Forget the lens and move on.

    Steve
     
  7. Slixtiesix

    Slixtiesix Subscriber

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    Looks like fungus. I wouldn´t buy it.
     
  8. Matus Kalisky

    Matus Kalisky Member

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    Thank you for your answers. Actually - the rear element can be replaced (should be around $150 including the work). So I am still considering it. However - what makes me unsure is what is the chance that the fungus attacked also deeper sitting elements ...
     
  9. canonman

    canonman Member

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    As some said: leave it by the owner - even as a gift I wouldn't take it...
     
  10. Q.G.

    Q.G. Inactive

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    You can't guess at the chance of that happening.
    It may, or may not. You'll never know unless you have the thing and keep an eye out for it, see if it does or not.

    Just like it may to lenses that as far as we know haven't been affected, yet. You never know. All we can do is store the things sensibly, and hope.

    Already having fungus in a lens may increase our expectation that its spores could have reached other parts of it then the ones we know affected by fungus already. But know that they have, and that they will develop into a fungal growth if they have, we do not.

    So if the price is right, and you can get the lens cleaned, worth a gamble.

    On the other hand, if it is going to cost to clean it, and there are other lenses you could get, why bother?
     
  11. Matus Kalisky

    Matus Kalisky Member

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    Hello, finally I did not get the lens, but as I informed myself about the possible repair (exchange) at the official german Pentax service I got a quote of 300 euro + TAX. They said that while the part itself is rather cheap (around €80 - comparable to the quote I have heard from elsewhere in USA) the work involved bring the price up.

    thank you for your help
     
  12. Rick A

    Rick A Subscriber

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    Now you know what happens to equiptment when its left in cases and bags, out of the sun, for extended periods of time.
     
  13. Jeff Kubach

    Jeff Kubach Member

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    That's the problem with older equipment. Age gets to us all!

    Jeff
     
  14. paul ron

    paul ron Member

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    You've got fungus etching the coating. Probably cheaper to get a new used lens instead of repairing that one.