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Thread: Wollensak Velostigmat series II f/4.5 12inch lens shutter

  1. #1

    Join Date
    Dec 2006
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    Galeton, PA
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    58

    Wollensak Velostigmat series II f/4.5 12inch lens shutter

    I hooked up an air bulb to my shutter on my Wollensak Velostigmat series II f/4.5 12inch lens. The shutter open & closed a few times & then just stopped. Now when you squeeze the bulb it blows the tube off the connection. Any ideas why it stopped working. I know nothing about this type of shutter. Thanks.

  2. #2

    Join Date
    Dec 2000
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    Tonopah, Nevada, USA
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    Re: Wollensak Velostigmat series II f/4.5 12inch lens shutter

    Quote Originally Posted by Brad Bireley View Post
    I hooked up an air bulb to my shutter on my Wollensak Velostigmat series II f/4.5 12inch lens. The shutter open & closed a few times & then just stopped. Now when you squeeze the bulb it blows the tube off the connection. Any ideas why it stopped working. I know nothing about this type of shutter. Thanks.
    Stuck piston. Carefully take the chrome tube apart and clean with solvent of some sort. Do not oil. Anything. Clean, dry, and slippery is the key. If you have a bit of paste wax you can wax and buff the piston with a soft cotton cloth for extra slip.

  3. #3

    Join Date
    Dec 2006
    Location
    Galeton, PA
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    58

    Re: Wollensak Velostigmat series II f/4.5 12inch lens shutter

    Thanks Jim!

  4. #4

    Join Date
    Dec 2006
    Posts
    953

    Re: Wollensak Velostigmat series II f/4.5 12inch lens shutter

    Before you clean the piston with a solvent, try just buffing the piston with a chamois. If that doesn't work, go with a solvent. They are very finicky devices, and the less changed, the better.

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