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  1. #1

    Join Date
    Jan 2004
    Location
    Cleveland, OH
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    378

    Good glass for contact prints

    Hi everyone. I had this nice contact printer I was using that had a decent piece of glass to cover the negatives during printing. Unfortunately I broke the glass and I was wondering if there is a place that sells suitable replacement. I guess I could get a new printer altogher, but I don't see the point in wasting the perfectly good frame. It is an 8x10 piece of glass that I am looking for. Also, what kind of prices should I expect to pay for an 8x10 piece of glass given I live in the US and not in NYC?

    Regards.
    ~Karl Borowski

  2. #2

    Join Date
    Mar 2004
    Location
    Wilmette,Illinois, USA
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    Karl,
    I suggest that you use plain old double strength window glass which you should be able to get at any hardware store or glass shop for a few dollars.This is what I use in a 27 inch vacuum frame and it works great.

    Richard

  3. #3

    Join Date
    Sep 2004
    Location
    Massachusetts, USA
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    I agree that if you are using a standard wooden frame with a hinged back held in with metal spring bars, window glass from the hardware store will work just fine. Should it need to be custom cut to size, bring the frame with you to insure proper fit. If you have the store's "new Kid" cut your glass, it could be off by 1/8th or more. Cost should be $1.50 or less.

    Another method is to get 1/2" thick plate glass from your local commercial glass dealer who does store windows. Have them grind the edges smooth to prevent cuts. Then lay your contact paper down on the enlarger easel, emulsion up. Place the film on it. Then lay the heavy piece of glass on the sandwich and the additional weight will squash everything down tight. The glass should be about an inch or so larger than the contact paper. This method is much faster for commercial production work. Cost: maybe five dollars or so.

    Lastly, if you ever get into color printing and would like to eliminate the green tint of the glass, use "water-white" glass instead. It is clear, not green. Not necessary for b&w work. The cost for an 8x10 used to run about $15.

  4. #4
    noseoil's Avatar
    Join Date
    Oct 2003
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    Tucson
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    Anyone know how much u.v. is blocked by window glass (green type with the lead in it) in various thicknesses? I like the 1/2" option with seamed edges, but does this stop a lot of u.v. because of the extra glass? I'm curious about contact printing with azo paper. tim



 

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