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Thread: Wista 45N Ground Glass removal

  1. #1

    Join Date
    Sep 2018
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    Wista 45N Ground Glass removal

    I was hoping someone has direct experience removing the ground glass on a Wista 45N? I assume I remove the screws shown in the picture after removing the rotating back? If so, what should I expect next in the process? I also assume the GG measures 101mm x 126mm (without having removed it).

    Regards,
    -JW:

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  2. #2

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    Re: Wista 45N Ground Glass removal

    I don't have a Wista 45N right now, so I'm writing from memory. Remove the 6 screws, and the frame will come off. There may be screws holding down the silver clips. Those are quite small, so be careful not to lose them. There may be a shim or two under the clips.

    You have a Sinar GG installed on your camera, so what is underneath?

    Kumar

  3. #3

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    Re: Wista 45N Ground Glass removal

    Quote Originally Posted by B.S.Kumar View Post
    I don't have a Wista 45N right now, so I'm writing from memory. Remove the 6 screws, and the frame will come off. There may be screws holding down the silver clips. Those are quite small, so be careful not to lose them. There may be a shim or two under the clips.

    You have a Sinar GG installed on your camera, so what is underneath?

    Kumar
    Thanks Kumar, for me it's always nice to know what I'm getting into. Underneath?

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  4. #4

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    Re: Wista 45N Ground Glass removal

    I meant under the Sinar GG. There were different versions of the Wista GG. One had a combination Fresnel/GG, with a cover glass on top, which is what your N might have had originally.

    Kumar

  5. #5

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    Re: Wista 45N Ground Glass removal

    Quote Originally Posted by B.S.Kumar View Post
    I meant under the Sinar GG. There were different versions of the Wista GG. One had a combination Fresnel/GG, with a cover glass on top, which is what your N might have had originally.

    Kumar
    I haven't a clue what's underneath. I thought it was simply a piece of ground polished glass with a grid. That's why I wanted to remove it. The view through the GG seemed really dim, especially the peripheral. Then again I'm a noob to 4x5. I was thinking of looking for a Fresnel/GG thinking it would help and wanted its dimensions. I read that there were two different sizes, a 100x122mm, and a 101x126mm. Mine appears to be 126mm in width.

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