Cross-processing is a film technique that consists in deliberately processing photographic film in chemicals intended for a different type of film. Discovered by accident, there are as many possibilities as there are types of films and depending on the film you use and the lab you use to develop, you´ll get completely different results. In general, the results are extremely high color saturation (the color cast will depend on the film used), very high contrast and a lot of film grain. Because results can be inconsistant, it can be more of a hit & miss technique. In this tutorial, I´ll show you the most common cross-processing effect using Photoshop where you have total control for consistant results and creative freedom.