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Over time, the optical density, color balance, lustre, and other qualities of a print will degrade. The rate at which deterioration occurs depends primarily on two main factors: the print itself, that is, the colorants used to form the image and the medium on which image resides, and the type of environment the print is exposed to.
RA-4 is Kodak's proprietary name for the chemical process most commonly used to make color photographic prints. It is used for both minilab wet silver halide digital printers of the types most common today in photo labs and drug stores, and for prints made with older-type optical enlargers and manual processing.
The majority of Woodburytype prints are easy to identify because the process was clearly described in print in books and on many prints sold commercially. Those that are described as “permanent prints” or not described at all, however, can be difficult to identify correctly even when using highly sophisticated analytical methods.
Art photography print types refers to the process and paper of how the photograph is printed and developed. C-Print / Chromogenic Print: A C-Print is the traditional way of printing using negatives or slides, an enlarger, and photographic paper—through a process of exposure and emulsive chemical layers. Chromogenic color prints are composed ...
Photographic printing is the process of producing a final image on paper for viewing, using chemically sensitized paper.The paper is exposed to a photographic negative, a positive transparency (or slide), or a digital image file projected using an enlarger or digital exposure unit such as a LightJet or Minilab printer.
A photopolymer or light-activated resin is a polymer that changes its properties when exposed to light, often in the ultraviolet or visible region of the electromagnetic spectrum. [1] These changes are often manifested structurally, for example hardening of the material occurs as a result of cross-linking when exposed to light.
Demounting is the process of removing a print from the mounting material. This is often done because older mounts were usually made from acidic paper materials that can deteriorate the paper or fade colorants. Mounts are usually adhered to prints through adhesive agents that can cause yellow distortions on the paper. [7]
A self-portrait in mordançage style. Mordançage is an alternative photographic process that alters silver gelatin prints to give them a degraded effect. The mordançage solution works in two ways: it chemically bleaches the print so that it can be redeveloped, and it lifts the black areas of the emulsion away from the paper, giving the appearance of veils.
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