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Thread: What are these spots?

  1. #1

    Join Date
    Nov 2020
    Posts
    17

    What are these spots?

    I'm back with a request for help again! New to this forum but am grateful for your expertise as my knowledge is very limited. I'm trying to sell the large format equipment of a friend's father. In examining and photographing one of his lenses (Calumet Caltar-S II 6" 150mm f:5,6 with Multicoating) I discovered several white "spots" around the outside edge of the lens. Looking at them under magnification they look somewhat like bubbles. Many of them don't have a center - just a tiny white outline of a bubble. I've looked at what fungus looks like and this doesn't look like fungus. I want to be as accurate as possible in my description and if this a serious issue I want to make note of it. Any ideas? Thank you in advance! Mark
    Attached Thumbnails Attached Thumbnails 900-250 (13).jpg   900-250 (3).jpg  

  2. #2

    Join Date
    Jan 2009
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    Denmark
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    Re: What are these spots?


  3. #3

    Join Date
    Nov 2020
    Posts
    17

    Re: What are these spots?

    By golly I think that's it! Thanks for the help. Glad it doesn't effect the images. Stay healthy! Mark

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