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Thread: ground glass source

  1. #1

    Join Date
    Apr 2000
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    166

    ground glass source

    Anyone have recent experience with sources for generic groundglass screens for old cameras?

  2. #2
    Whatever David A. Goldfarb's Avatar
    Join Date
    Mar 2000
    Location
    Honolulu, Hawai'i
    Posts
    4,658

    ground glass source

    I can't seem to find his website, but Steven Shuart, 102 Pine Ave, Kane, PA 16735, (800)458-6092, sells custom cut groundglass, anti-newton glass, classic lenses, Graflex parts, and such.

  3. #3

    Join Date
    Oct 1998
    Posts
    106

    ground glass source

    It is very easy to make your own: Get some #500-600 carborundum from a lapidary supply (jewelry supply, rock polisher, etc) Some water, and an extra piece of glass. About 20-30 minutes of of gentle, random polishing and you have a very fine Ground Glass.

  4. #4

    Join Date
    Aug 2001
    Posts
    255

    ground glass source

    Stephen Shuarts website: www.stephenshuart.com

  5. #5

    ground glass source

    I bought one a year ago from a guy on ebay who makes and sells them. I have no idea what his name is, but he might still be listing them on ebay. Probably not as perfect as a factory glass, but perfectly useable and very cheap.

  6. #6

    ground glass source

    Midwest Photo Exchange can usually supply ground glass to fit your camera.

    Regards,

  7. #7

    ground glass source

    Good ground glass has never been around an abrasive, they are all acic etched with hydroflouric acid using planar glass.

  8. #8

    ground glass source

    Try some glass etching cream from any craft store. You may have to try several time to get it even all over, but its cheap and easy. And its much safer than hyroflouric acid.

  9. #9

    Join Date
    Oct 1998
    Posts
    106

    ground glass source

    I had to wonder what I'm missing using a carborundum-ground-glass. I made a replacement for a Super Graphic I bought a few years ago. (...it had a sheet of velum between the fresnel & a clear glass!) My other camera is a Tachihara: Generally considered to have a 'decent' GG for the price of the camera. (though I wonder about how flat it is considering it's made of plastic....it works) The image is bright and grain/image structure holds up well to a 10X loupe. This is more than enough magnification to critical focus large format. Comparing to the carborundum-G-G, the image brighness and grain structure is just as good as the Tachihara. Certainly the fresnel is more a distraction than the grain size of the GG for focus. The quality of glass you start with is important, but even a high quality plate glass you should be able to find a sample big enough that is flat enough for the application. This worked so well and easy, I made a set of sizes to check film plane accuracy for 35mm & 120 cameras. Someday maybe I'll get a good ground glass but for now these are quite servicable.

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