Friday, July 26, 2013

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How to Make a Photo Glass Plate Negative

Long before digital cameras there was, and still is, commercially manufactured photo negative film. And before that there were commercially manufactured glass plates. And before that, glass plates were handmade by the photographer or a photographer's assistant. It was a slow, demanding process often carried out on location in a makeshift darkroom the photographer carried along with him. There's still a way to make a collodion glass plate negative.

Instructions

    1

    Pour photographic collodion over a clean, clear glass plate. Tilt the glass plate so the collodion coats the entire surface and pour the excess back in the bottle. Photographic collodion is an ether-rich, transparent solution that leaves the surface of a glass plate sticky.

    2

    Take the collodion coated glass plate into a darkroom and dip the entire sheet of glass into a bath of silver nitrate, wearing rubber gloves. Silver nitrate is light-sensitive. It binds with the iodide and bromide in the collodion solution. Wipe the silver nitrate off the back of the glass plate.

    3

    Slide the glass plate into a light-proof holder designed to be slid into the back of a glass plate camera.

    4

    Set up the glass plate camera to take a photograph; pull up the slide that sits just in front of the glass plate in the holder. Expose the glass plate by removing the cover on the camera lens or clicking the camera shutter.

    5

    Put back the slide in front of the now-exposed glass plate. Pull the light-proof glass plate holder out of the camera and take into the darkroom. Pull the exposed glass plate out of the holder and pour developer over the face of the glass plate or submerge in a bath of developer.

    6

    Rinse the glass plate with clean water.

    7

    Submerge the glass plate in a fixative solution to fix the image. This solution removes any coating on the glass plate other than that creating the image on the plate.

    8

    Wash the plate again to rinse away the fixative solution, dry it and then varnish it. The varnish protects the negative image on the glass plate.

    9

    Warm up both the varnish and glass plate to about 98 degrees Fahrenheit--body temperature--and pour the varnish on to the emulsion side of the glass plate. Rotate the glass to flow the varnish over the surface of the negative. Pour excess back in the bottle and let the glass negative dry.

    10

    Place a sheet of photo paper in a printing frame and place the glass negative on top. Expose both to sunlight to make a photographic print.


How to Make a Photo Glass Plate Negative

Long before digital cameras there was, and still is, commercially manufactured photo negative film. And before that there were commercially manufactured glass plates. And before that, glass plates were handmade by the photographer or a photographer's assistant. It was a slow, demanding process often carried out on location in a makeshift darkroom the photographer carried along with him. There's still a way to make a collodion glass plate negative.

Instructions

    1

    Pour photographic collodion over a clean, clear glass plate. Tilt the glass plate so the collodion coats the entire surface and pour the excess back in the bottle. Photographic collodion is an ether-rich, transparent solution that leaves the surface of a glass plate sticky.

    2

    Take the collodion coated glass plate into a darkroom and dip the entire sheet of glass into a bath of silver nitrate, wearing rubber gloves. Silver nitrate is light-sensitive. It binds with the iodide and bromide in the collodion solution. Wipe the silver nitrate off the back of the glass plate.

    3

    Slide the glass plate into a light-proof holder designed to be slid into the back of a glass plate camera.

    4

    Set up the glass plate camera to take a photograph; pull up the slide that sits just in front of the glass plate in the holder. Expose the glass plate by removing the cover on the camera lens or clicking the camera shutter.

    5

    Put back the slide in front of the now-exposed glass plate. Pull the light-proof glass plate holder out of the camera and take into the darkroom. Pull the exposed glass plate out of the holder and pour developer over the face of the glass plate or submerge in a bath of developer.

    6

    Rinse the glass plate with clean water.

    7

    Submerge the glass plate in a fixative solution to fix the image. This solution removes any coating on the glass plate other than that creating the image on the plate.

    8

    Wash the plate again to rinse away the fixative solution, dry it and then varnish it.

    Enhance your photography skill,The Top Secret Photography Techniques

    . The varnish protects the negative image on the glass plate.

    9

    Warm up both the varnish and glass plate to about 98 degrees Fahrenheit--body temperature--and pour the varnish on to the emulsion side of the glass plate. Rotate the glass to flow the varnish over the surface of the negative. Pour excess back in the bottle and let the glass negative dry.

    10

    Place a sheet of photo paper in a printing frame and place the glass negative on top. Expose both to sunlight to make a photographic print.



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