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Thread: Wollensak Velostigmat Series II 12" inch f4.5 diaphragm shape

  1. #1

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    Galeton, PA
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    Wollensak Velostigmat Series II 12" inch f4.5 diaphragm shape

    Is the aperture when stopped down look like this? It's a very odd shape.




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  2. #2

    Join Date
    Jul 2020
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    Re: Wollensak Velostigmat Series II 12" inch f4.5

    i'd say the blades are sticking
    " The man who invented the camera has a lot to answer for! " Hercule Poirot

  3. #3
    Jon Shiu's Avatar
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    Nov 2003
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    Mendocino, California
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    Re: Wollensak Velostigmat Series II 12" inch f4.5 diaphragm shape

    Normal for "Studio" shutter.
    my black and white photos of the Mendocino Coast: jonshiu.zenfolio.com

  4. #4
    Mark Sawyer's Avatar
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    Jul 2004
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    Stuck inside of Tucson with the Neverland Blues again...
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    6,269

    Re: Wollensak Velostigmat Series II 12" inch f4.5 diaphragm shape

    Looks like an old Studio Shutter. Yes, their blades do get sticky and out-of-alignment.
    "I love my Verito lens, but I always have to sharpen everything in Photoshop..."

  5. #5

    Join Date
    Dec 2013
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    Washington, DC
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    Re: Wollensak Velostigmat Series II 12" inch f4.5 diaphragm shape

    For a Studio shutter, that’s above average.

    I find that any asymmetry is barely visible at normal portrait taking apertures (f/16 and wider), and I have never noticed an ill-effect on the film or print.

  6. #6

    Join Date
    Aug 2018
    Posts
    381

    Re: Wollensak Velostigmat Series II 12" inch f4.5 diaphragm shape

    Mine looks the same. Spent $90 on a conclusion that new parts needs to be made in order to fix the shutter.

    Sent fra min SM-G975F via Tapatalk

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