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Thread: How have you marked your ground glass?

  1. #1
    popdoc's Avatar
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    How have you marked your ground glass?

    My hassy and 4x5 have the “magic thirds” marked on the ground glass, but my Wista 8x10’s GG is “naked”.

    Just finished an architectural shoot with the 8x10 and now wished I had some “help” during image acquisition to make it easy on my OCD post development...!

    What do you y’all have your GG’s, how did you put it there, and why?

    Thanks!

  2. #2

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    Re: How have you marked your ground glass?

    I rely on a gridded ground glass or a grid overlay when doing architectural work. Aligning the verticals and horizontals is much easier with a grid.
    Other than that, I don't need any markings.

    Doremus

  3. #3
    Nodda Duma's Avatar
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    How have you marked your ground glass?

    I used a pencil and a straight edge to draw one-third lines on a blank ground glass.
    Newly made large format dry plates available! Look:
    https://www.pictoriographica.com

  4. #4
    Jim Jones's Avatar
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    Re: How have you marked your ground glass?

    On a standard ground glass I scribe a 0.5 inch grid. A slightly blunted needle in a pin vise works well for this. Lay the GG ground side up on quad ruled paper. A custom pattern can be computer generated. Use a steel rule with masking tape applied to its bottom to guide the scribe. The lines are unobtrusive, but plainly legible.

  5. #5
    Jac@stafford.net's Avatar
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    Re: How have you marked your ground glass?

    I'm with Jim Jones on this. FWIW, from my drafting kit I have a cork backed steel ruler. The cork is set slightly inside the ruler's edge and provides a modest non-skid surface.

    If you have quality glass bits, perhaps drill a few holes for aerial focusing.

  6. #6
    Vaughn's Avatar
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    Re: How have you marked your ground glass?

    I marked the GG for use of modified darkslides to make 4x10x with the 8x10 and 5x14x on the 11x14. I found the marks on the 11x14 GG to be off a bit -- the variations in my film holders throw the marks off.

    My 8x10 has 1" grid -- nice to have, but not marked for the 'rule of thirds'. I never paid much attention to that 'rule' -- I suppose it gets figured in with the general composition on the GG.
    "Landscapes exist in the material world yet soar in the realms of the spirit..." Tsung Ping, 5th Century China

  7. #7
    Drew Wiley
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    Re: How have you marked your ground glass?

    Fine point Sharpie pen. That way the lines can easily be removed with solvent. I only do it for roll film backs. But GG's slip a bit anyway. They need a bit of exp/contraction wiggle room to prevent breakage - or more properly, the wood or metal frame around them does.

  8. #8

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    Re: How have you marked your ground glass?

    Quote Originally Posted by Nodda Duma View Post
    I used a pencil and a straight edge to draw one-third lines on a blank ground glass.
    I have done the same for a 1/2-inch grid. But if you make a mistake, don't use an eraser, even the soft white ones leave a streak that is hard to remove. Use soap and water and start over.

  9. #9
    Nodda Duma's Avatar
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    Re: How have you marked your ground glass?

    Quote Originally Posted by mmerig View Post
    I have done the same for a 1/2-inch grid. But if you make a mistake, don't use an eraser, even the soft white ones leave a streak that is hard to remove. Use soap and water and start over.
    Good tip!
    Newly made large format dry plates available! Look:
    https://www.pictoriographica.com

  10. #10
    popdoc's Avatar
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    Re: How have you marked your ground glass?

    I like the erasable option as a start- thanks!


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