What is cross processing?
Cross processing refers to developing a film using a development process that was not intended for it. It usually means developing slide film using a print developing process or vice-versa. Cross processing is sometimes done because it yields interesting, albeit unpredictable effects. Contrast tends to be enhanced and colours tend to shift. Edgier fashion and commercial photography is sometimes done using cross processing. Note that many labs won t do cross processing, sometimes because their automated machines refuse to let them do it, sometimes because they re concerned about their photochemicals getting contaminated and sometimes because they have no idea what it is.
