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Cross processing
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<p>Cross processing (sometimes abbreviated to Xpro) is the deliberate processing of <a href="/facts/Photographic/ezLPT43M">photographic</a> film in a chemical solution intended for a different type of film. The effect was discovered independently by many different photographers often by mistake in the days of <a href="/facts/C-22_process/xSG9GbG8">C-22</a> and <a href="/facts/E-4_process/sVGlTRq7">E-4</a>. Color cross processed photographs are often characterized by unnatural colors and high contrast. The results of cross processing differ from case to case, as the results are determined by many factors such as the make and type of the film used, the amount of light exposed onto the film and the chemical used to develop the film. Cross processing has been used in a variety of photographic and cinematographic practices, most notably rising in popularity during the 1990s. Similar effects can also be achieved with digital filter effects. </p>