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  1. #1

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    Mounting/Retaining ring for Graphex 135mm Optar? Wollensak

    Hi Folks,

    Sorry to start a thread just for this but all the information I can find is to do with slip on filters.

    I've lost the original retaining ring from when I borrowed a lens and I'm struggling to work out what size I need. I saw something about how they didn't stick to standard sizes so I'm not sure.

    I'm hesitant about buying the wrong one because of how long they take to arrive, I want to get shooting!


    Cheers

    J

  2. #2
    Jon Shiu's Avatar
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    go to the skgrimes.com website and look up flanges. I believe Graphex is another name for Rapax. Measure your shutter threads to confirm.

    http://www.skgrimes.com/products/mou...-stock-flanges

    Jon
    Mendocino Coast Black and White Photography: www.jonshiu.com

  3. #3

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    In the meantime, if you are truing to mount a shutter on a lenboard, you might run a bead around the threads from a hot-glue gun to hold it in. It can later be cleaned off pretty easy.

  4. #4

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    Here is a photo of the ring and spring for that lens, from a year 1955 Speed.
    The minor diameter of the rear of the lens (before the thread starts), is 1.290 inch
    Attached Thumbnails Attached Thumbnails Optar1.jpg   Optar2.jpg  

  5. #5

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    Thanks folks.

    The stupid thing is, I didn't even use the lens that I borrowed. I might have to follow Tom's advice for the mean time and hope that it turns up. Spending 35 dollars + air mail on a lens worth 50 dollars is painful. If I'm reading that Grimes table right, at least.

    Cheers

  6. #6
    shutterfinger's Avatar
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    The 135mm f4.7 Graphic Optar is mounted in a #2 Graphex shutter. The SK Grimes web site lists a retaining ring for the #1 and #3 Rapax shutter but not the #2. Graphex is Rapax renamed.



 

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