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  1. #11
    SuzanneR's Avatar
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    John Coffer demonstrated a glass rod approach to sensitizing paper for albumen prints this past summer at his the wet plate workshop I did.

    He took a glass rod, and with a blow torch bent it into roughly an "L" shape. Then he took the paper, and bent the sides up so the silver nitrate wouldn't spill off and spread it around with the rod. He apparently had been having some success with it until our workshop. In the end, one or two of our prints had some uneven splotches, so I think he was going to go back to the proverbial drawing board on that technique.

  2. #12
    Photo Engineer's Avatar
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    I have tried the bent edge method, and the problem is that as the paper wets, it begins to buckle due to the stress of the bent edges. As a result, I had high and low spots that resulted in puddles which formed splotches just as you say.

    I have seen some success with a wire wrapped rod. I have posted the URL for a company that makes coating rods prewrapped with different guages of wire for different coating thicknesses. I'm not sure if it would work in this application, but I have seen some nice coatings made this way. It is quite messy though.

    PE

  3. #13
    David A. Goldfarb's Avatar
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    I think the silver nitrate solution would be too thin to work well with a wire wrapped rod. You could add gelatin to the solution to thicken it and get it to set up after coating, I guess, but that would change the surface of the paper (which some people may prefer).
    flickr--http://www.flickr.com/photos/davidagoldfarb/
    Photography (not as up to date as the flickr site)--http://www.davidagoldfarb.com/photo
    Academic (Slavic and Comparative Literature)--http://www.davidagoldfarb.com

  4. #14
    Jim Noel's Avatar
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    I have good coating 8x10 and 7x17 luck with a "Magic Brush". For 4x5 and 5x7 I usually use a rod. I always tape the corners to a piece of plate glass to insure a smooth background.
    [FONT=Comic Sans MS]Films NOT Dead - Just getting fixed![/FONT]

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