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Thread: Focusing Screen grid lines

  1. #1

    Focusing Screen grid lines

    I'm making a replacement ground glass for my Graphic View I. As suggested I used a valve grinding compound for the glass, tried "rough" and "fine" grits on two pieces of glass (no size was listed for the compounds). Now I'm trying to put so me grid lines on the glass and can't find a satisfactory marker. Suggestions? Thanks. Lawrence

  2. #2

    Focusing Screen grid lines

    Use pencil on the rough side of the glass; for temporary markings, a "sharpie" ultra fine point on the smooth side works well.

  3. #3

    Focusing Screen grid lines

    In putting a set of lines on for a roll film adaptor, I used the thinnest size of drafting tape on the underside of the glass. It's held up for years.

  4. #4

    Join Date
    Feb 1998

    Focusing Screen grid lines

    I scribed lines on mine with the blade of an exacto knife. I used a straight edge lined up on measured tick marks, and went over with the exacto a number of times until the 'tooth' was removed. The result is much like the scribed lines on the face of an oscilloscope. Very fine, and transparent. And forever, too.

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